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ESS Series

User’s Manual

105

Appendix E ---Glossary

Here are some terms explanations

in this user’s manual.



NAS: It is the abbreviation for network attached system. It provides user file service via

network.



SATA:It is the abbreviation for serial ATA. In current released Serial ATA 2.0, data

transmission speed can reach 300MB/second.



SATA HDD: HDD adopts SATA standard. Some leading manufacturers such as Seagate,

Hitachi have already released SATA HDD.



SAMBA: it is MS network communication protocol software suitable for UNIX. Its core is

SMB (server message block) protocol. SMB is a client /server protocol. User can access

share file system, printer and other resources in the server via this protocol.



NFS: It is an abbreviation for network file system. It is a distribution file system. It can allow

the local PC to use the file or peripheral devices of another PC. It is mainly used in UNIX

platform.



iSCSI: It is an abbreviation for internet small computer system interface. It is an internet

protocol standard in Ethernet. It is an SCSI instruction set for hardware to be used in IP

protocol layer. Generally y speaking, iSCSI can realize SCSI protocol in the IP network to

realize router option in high-speed 1000M Ethernet.



FTP: It is an abbreviation for file transfer protocol. It is a protocol of the TCP/IP protocol

group. It is to transfer file from one PC to another while it has no relationship with PC OS,

location and connection type.



CIFS: It is an abbreviation for Common Internet File System. CIFS is an open and cross-

platform running mechanism for the user to ask for file or print service from the server. It is a

standard server message block (SMB) protocol widely used in personnel PC and work

station



Synchronization: After creating RAID 1or RAID5, before using, system needs to read-write

the HDD at a fixed speed and adopts an algorithm to calculate. This process is so called

synchronization. During the synchronization, system performance speed is very low.



Storage pool: it is a virtual logic device. It can consist of several HDDs and RAID group. It is

a main way to realized virtual storage.



Share directory: Local PC access the top path of the share storage space. You can create,

remove, authenticate and set valid user at the storage device. User is only allowed to

operate folder and file performance in the under-layer. According to different share protocols,

it can be divided into SAMBA share directory , NFS share directory and FTP share

directory .



Management status: It is a device status when controller configure device via web. Actually,

when there is no error or damage, device shall be always in management status.



Ready status: It is a device status when controller access HDD via network. System is ready

to use after you

configure correctly in accordance with this user’s manual. Some non-device

error (such as configuration error, hot swap error) may result in device failure. You can

configure again to boot up the device. But data loss may occur during this process.



Working status: It is for RAID6/RAID5/RAID1.It is the RAID status after it completes

synchronization operation. When the RAID group is in working status, on the WEB interface,

from Disk->RAID, the RAID device status is

“clean”.

Содержание ESS2016X

Страница 1: ...ESS Series Internet Intelligent Storage User s Manual V 2 0 1...

Страница 2: ...nt Panel 2 1 3 2 Rear Panel 2 1 4 ESS3116X 3 1 4 1 Front Panel 3 1 4 2 Rear Panel 4 1 5 ESS5016S ESS5016S R 5 1 5 1 Front Panel 5 1 5 2 Rear Panel 6 1 6 ESS5016D R 7 1 6 1 Front Panel 7 1 6 2 Rear Pan...

Страница 3: ...024D R 22 1 10 7 ESS5048S ESS5048S R 23 1 11 Disk Array Enclosure Specifications 24 1 11 1 ESS2016X J 24 1 11 2 ESS3116S J ESS3116S JR ESS3116D JR 25 1 11 3 ESS3124S J ESS3124S JR ESS3124D JR 26 1 11...

Страница 4: ...dual controller series product only 45 3 4 Disk Management 46 3 4 1 Disk Information 46 3 4 2 Disk Status 49 3 4 3 RAID Configuration 50 3 4 4 Pool Configuration 53 3 4 5 Logic Volume 55 3 5 iSCSI Man...

Страница 5: ...ctory 67 4 3 2 Access NFS Share Directory 69 4 3 3 Access FTP Share Directory 69 4 3 4 Access iSCSI Share Directory 70 5 DISK ARRAY ENCLOSURE 71 5 1 HDD Installation 71 5 2 ESS2016X J 71 5 2 1 Front P...

Страница 6: ...eet 83 5 8 2 Cascade Connection Sample 84 5 9 Boot up Disk Array Enclosure 87 5 10 Shut Down Disk Array Enclosure 88 5 11 Disk Array Enclosure Setup 88 5 12 Update 88 5 12 1 Preparation 88 5 12 2 Upda...

Страница 7: ...TTY TERMINAL 102 9 1 Login 102 9 2 Configuration Menu 104 9 2 1 View System Info 104 9 2 2 Reset Password 104 9 2 3 Network Settings 104 9 2 4 Super User 104 10 APPENDIX E GLOSSARY 105 11 APPENDIX F T...

Страница 8: ...r using our internet intelligent storage system This operating manual is designed to be a reference tool for the installation and operation of your system Before installation and operation please read...

Страница 9: ...r should be done by the qualified service engineers We are not liable for any problems caused by unauthorized modifications or attempted repair 4 Environment The server shall be installed in a cool dr...

Страница 10: ...upplying LAN1 LAN2 LAN3 LAN4 ESS5016S ESS5016S R 3U 16 Single power supplying redun dancy power supplying LAN1 LAN2 LAN3 LAN4 WEB 1 ESS5016D R 3U 16 Redundancy power supplying LAN1 LAN2 LAN3 LAN4 10G_...

Страница 11: ...ure 1 2 SN Name Function 1 Power on off button Press it to boot up the device Press it for 5 seconds to shut down the device 2 HDD Indicator Light When system HDD is reading or writing the blue light...

Страница 12: ...reserved port for future development 7 RS232 port It is to debug device and login command interface Please refer to chapter 9 for detailed command operation information 8 LAN1 LAN2 Two data Ethernet...

Страница 13: ...files and device initial boot up data 3 Alarm Indicator Light The red light is flashing when there is an alarm or abnormal situation 4 Network Indicator Light The blue light is flashing when the netw...

Страница 14: ...o to the command interface 7 SAS port Connect to disk array enclosure 1 5 ESS5016S ESS5016S R 1 5 1 Front Panel The front panel is shown as below See Figure 1 7 The HDD slot number ranges from left to...

Страница 15: ...1 8 Figure 1 8 The redundancy power supplying rear panel is shown as below See Figure 1 9 Figure 1 9 You can refer to the following sheet for detailed information SN Port Function 1 Power Port Connec...

Страница 16: ...em error indictor light The error light is on when system is abnormal The error light is off when system is running properly CACHE It is reserved for future use RST Press it for 5 seconds to restore d...

Страница 17: ...mit data 10G_1 10G_2 10000Mbps data Ethernet port It is to transmit data Optional WEB port Ethernet Management port Login Web via this port USB port USB port PORT1 PORT2 Connect to the IN port of the...

Страница 18: ...DD is reading or writing the blue light becomes flash Alarm Indicator Light The red light is flashing when there is an alarm or abnormal situation Network Indicator Light The blue light is flashing wh...

Страница 19: ...n Web via this port USB port USB port PORT1 PORT2 Connect to the IN port of the disk array enclosure CONSOLE COM port It is to debug the device and view the login command interface RUN The light is fl...

Страница 20: ...g or writing the blue light becomes flash Alarm Indicator Light The red light is flashing when there is an alarm or abnormal situation Network Indicator Light The blue light is flashing when the netwo...

Страница 21: ...nnect to the IN port of the disk array enclosure CONSOLE COM port It is to debug the device and view the login command interface RUN The light is flashing after system booted up and begins running M S...

Страница 22: ...n system HDD is reading or writing the blue light becomes flash Alarm Indicator Light The red light is flashing when there is an alarm or abnormal situation Network Indicator Light The blue light is f...

Страница 23: ...ESS Series User s Manual 14 Figure 1 18 The four power supplying rear panel is shown as below See Figure 1 19...

Страница 24: ...power supplying source 4 Main control module It is about all kinds of ports and indictor light introduction Please refer to the following sheet You can refer to the following sheet for master control...

Страница 25: ...ght is off when system is running properly ERR System error indictor light The error light is on when system is abnormal The error light is off when system is running properly SPD SAS speed indicator...

Страница 26: ...nt Temperature 0 40 Working Environment Humidity 10 80 Non condensation Storage Environment Temperature 20 70 Storage Environment Humidity 5 90 Non condensation Working Altitude 60m 5000m 1 10 2 ESS31...

Страница 27: ...standard device compatible with various software platforms Specifications Dimensions Power Consumption 100V 240V 47Hz 63Hz Whole Device Power Consumption Below 400W With HDD Below 200W No HDD H W D 13...

Страница 28: ...e HDD HDD Installation Independent HDD bracket Support HDD hot swap HDD Hotspare Support global hotspare HDD Disk Array Enclosure Max 4 level cascade connection Network Port Management Network Port On...

Страница 29: ...er NOT PROVIDED SSD HDD Each HDD max supports 4T RAID Mode RAID0 RAID1 RAID3 RAID5 RAID6 RAID10 RAID50 RAID60 JBOD one HDD global hotspare HDD HDD Installation Independent HDD bracket Support HDD hot...

Страница 30: ...removable HDD bracket SBB2 0 specifications compliance Setup Interface WEB GUI Storage Protocol Storage Protocol iSCSI SAMBA NFS FTP Video Capacity Input Video 256 channel D1 128 channel 720P 64 chann...

Страница 31: ...e Fan Redundant dual ball bearing fan MTBF 100 thousand hours Motherboard Server Support 7x24H work Storage Default 16G With ECC verification Max 32GB Case Self developed case 1 2mm extra thickness ho...

Страница 32: ...0 40 Working Environment Humidity 10 80 Non condensation Storage Environment Temperature 20 70 Storage Environment Humidity 5 90 Non condensation Working Altitude 60m 5000m 1 10 7 ESS5048S ESS5048S R...

Страница 33: ...rt Data Network port Four 10 100 1000Mbps Ethernet ports Support load balance and network adapter binding Specifications Dimensions Power Consumption AC 100V 240V 10 60Hz 50Hz Whole Device Power Consu...

Страница 34: ...D H W D 133mm 448mm 472mm Installation Mode Standard 19 inch rack installation Net Weight 15kg Environments Requirements Working Environment Temperature 0 40 Working Environment Humidity 10 80 Non con...

Страница 35: ...torage Humidity 5 90 Non condensation Working Altitude 60m 3000m 60m 5000m 1 11 3 ESS3124S J ESS3124S JR ESS3124D JR Model ESS3124S J ESS3124S JR ESS3124D JR System Controller 1 2 Power Mode 500W Sing...

Страница 36: ...l bearing fan MTBF 100 thousand hours Main board Server Support 7x24H work Case Self developed case 1 2mm extra thickness hot dip galvanized steel Self developed patent removable HDD bracket SBB2 0 sp...

Страница 37: ...ont panel See Figure 2 1 Figure 2 1 SN Name Function 1 HDD Power indicator light Green The HDD is properly installed on the device and the power is on Red HDD malfunction 2 HDD read write indicator li...

Страница 38: ...n box from the device and then use the screwdriver to remove the top cover of the battery box b Take out the battery from the accessories bag and then insert to the battery box Connect the battery to...

Страница 39: ...y enclosure a Login web interface Please refer to chapter 3 1 b From System Management Shutdown c Select option to shut down the system There are three options for you shut down restart Force restart...

Страница 40: ...You can just connect to one Ethernet port to connect to the network a Connect the PC to the management network port WEB port via the network cable b Change the PC IP address as 192 168 0 XXX Subnet ma...

Страница 41: ...n browser and then input new IP address such as http 172 12 5 576 You can see the new IP is valid if you can login You can go to the host Web interface or go to the In DOS environment input the comman...

Страница 42: ...ollowing interface See Figure 3 1 b Please input user name and password to login Default user name is admin and default password is 888888888888 c Click Login button Important The host series product...

Страница 43: ...Figure 3 2 Device name Set system name Device position Input device position information for you reference Date Set system date Check the enable button to set Time Set system time Check the enable but...

Страница 44: ...s user can read write or delete all storage data in current system It can configure the whole system and set ordinary user share directory rights Ordinary user guest 666666666666 Edit It refers to all...

Страница 45: ...w password and confirm you can modify a user s password For the ordinary user you need to input old password to confirm Click Save button system goes back to User interface You can see the correspondi...

Страница 46: ...t delete an account if it has been set as a valid share account 3 2 4 Guide After you logged in as the system administrator from system to guide you can go to Guide interface Guide function is to help...

Страница 47: ...have an error that can not be fixed Not installed There is no component Unknown The components have unknown error Not available The components can not work No access allowed Can not access the compon...

Страница 48: ...roller After you logged in as the system administrator from system to upgrade here you can see a system upgrade interface is shown as in Figure 3 8 Select device type host disk array enclosure from th...

Страница 49: ...he following interface See Figure 3 9 Please note the following interface is based on the dual controller series product There are three options for you shut down restart Force restart Or you can see...

Страница 50: ...different network environments The data network ports shall be in 1000Mbps or higher environments After you logged in as the system administrator click Network button you can see the following interfa...

Страница 51: ...do not need to check the management Ethernet port or the data Ethernet port You can just connect to one Ethernet port to connect to the network ESS50XXS ESS50XXS R network port is shown as in Figure 3...

Страница 52: ...the HDD amount such as ESS5016D R ESS5024D R Figure 3 13 Please refer to the following sheet for detailed information Network Port Network Adapter Function Management Port eth0 Use this port to login...

Страница 53: ...can see the following interface After your modification such as IP address subnet mask default gateway and etc please click save button to exit See Figure 3 15 Figure 3 15 3 3 1 3 Binding the network...

Страница 54: ...ort and one port is at backup mode All flows are transmitted on the main link The backup port begins to transmit data once the main active port is malfunction LACP mode It is to create an aggregation...

Страница 55: ...nformation Click disk button you can see the following interface See Figure 3 18 The disk amount displayed here for reference only Here you can review the following information Serial number Channel n...

Страница 56: ...RAID groups share hotspare disk It only occupies the physical disk space when it is running When any disk of the RAID group is malfunction the hotspare disk can automatically replace it In Figure 3 18...

Страница 57: ...3 18 select a disk and then click Enable MAID2 0 massive array of idle disks button you can enable hibernation function See Figure 3 20 This function allows the disk to stop working if there is no rea...

Страница 58: ...ion S M A R T Self Monitoring Analysis and Reporting Technology technology is to provide disk malfunction warning before the real problem occurs It is to prompt user to replace disk or backup disk dat...

Страница 59: ...ed the synchronization degraded The RAID group is degrading now recovering The RAID group is recovering now You can view recovering capacity percentage and synchronization speed on the resyncing The R...

Страница 60: ...u have connected to the disk array enclosure Otherwise you can not see this item About chunk depth Chunk depth setup here can affect device storage capability Please refer to your technical engineer f...

Страница 61: ...o share directory Click remove button you can see system pops up a dialogue to warn you You need to remove storage pool and then remove the RAID group If current RAID has been used there is a storage...

Страница 62: ...on After you logged in the system as the administrator and go to the Pool interface you can see the following interface See Figure 3 25 Here you can view the following information Pool name Member dev...

Страница 63: ...ed to delete share directory first and then remove the storage pool 3 4 4 2 Add Pool In Figure 3 25 click add button you can see the following interface See Figure 3 26 Here you can select RAID device...

Страница 64: ...he administrator you can add delete logic volume or add space See Figure 3 27 Figure 3 27 3 4 5 1 Delete user volume It is for you to delete the user volume 3 4 5 2 Add user volume It is for you to ad...

Страница 65: ...ce name It is easy for you to recognize the iSCSI device Logic volume It is to set the shared user volume when you create the iSCSI Block size It is to set the shared storage space size Set space Here...

Страница 66: ...loading an iSCSI share you do not need to input a valid user name and password Figure 3 30 3 5 2 Edit iSCSI share Click Edit button in Figure 3 30 you can go to the following interface Here you can ed...

Страница 67: ...NFS and FTP share information Here you can also add edit or delete share directory Please refer to the following sheet for detailed information Share Type Status Parameter Note SAMBA share cifs SAMBA...

Страница 68: ...d user all users can access the share directory NFS setup Share Enable NFS share and then disable SAMBA and FTP share Valid IP The user IP address or subnet mask that can access the share directory Th...

Страница 69: ...k FTP configuration the interface is shown as in Figure 3 33 Here you can view FTP configuration information You can set FTP share directory delete FTP share directory In Figure 3 33 you can see the f...

Страница 70: ...nactive you can receive an email if you have enabled email alarm function Or you can hear audio from the buzzer if you have enable buzzer alarm function Support the SNMP protocol software connections...

Страница 71: ...Input receiver email address Receiver 3 Input receiver email address Receiver 4 Input receiver email address Figure 3 34 3 8 Status Management Status management is to view system log system status and...

Страница 72: ...o search Figure 3 35 Click export button system pops up the following interface See Figure 3 36 Click save button and specify the path You can download the logs to your local PC Please note administra...

Страница 73: ...directory Current SAMBA share directory name Access time Visit time Figure 3 37 3 8 3 Resume Resume interface is shown as in Figure 3 38 After you logged in the system as the administrator there are t...

Страница 74: ...er Name Note Resume all setup Restore all items to factory default setup Resume account setup Except the system default four users rest accounts will be deleted Resume network setup Restore network it...

Страница 75: ...chapter 3 4 3 to add RAID group d Refer to chapter 3 4 4 to add storage pool e Refer to chapter 3 4 5 to add user volume f Refer to chapter 3 6 1 to add SMABA share directory i Select the storage pool...

Страница 76: ...to chapter 3 1 b Create RAID group optional Refer to chapter 3 4 3 c Create and set storage pool if you have added the RAID group in the previous step Refer to chapter 3 4 4 d Add user volume Refer t...

Страница 77: ...are directory See Figure 4 1 Right click mouse and then select Map Network Drive See Figure 4 2 Figure 4 2 Select map network drive name See Figure 4 3 Figure 4 3 Go to local PC double click My Comput...

Страница 78: ...116 series product NFS share directory home user Mount directory of the Linux user end After you complete the NFS mount please use command to unmount umount home user home user Mount directory of the...

Страница 79: ...ESS Series User s Manual 70 Figure 4 5 4 3 4 Access iSCSI Share Directory Please refer to Appendix B for detailed information...

Страница 80: ...refer to chapter 2 1 to install HDD 5 2 ESS2016X J 5 2 1 Front Panel The front panel is shown as below See Figure 5 1 Figure 5 1 5 2 2 Rear Panel The rear panel is shown as in Figure 5 2 Figure 5 2 Pl...

Страница 81: ...7 Indicator light RUN light is on when the device is on and working properly M S main control light The light is on when the device is running properly The light is off when there is abnormal situati...

Страница 82: ...5 3 2 Rear Panel The rear panel has two types single power and redundancy power These two types have slight difference on the power module and fan module Please check carefully The single power mode...

Страница 83: ...Indicator light The RUN light is on when device has booted up and work properly M S is main control indicator light The light is on when system is working properly The light is off when the system is...

Страница 84: ...the device HDD Indicator Light When system HDD is reading or writing the blue light becomes flash Alarm Indicator Light The red light is flashing when there is an alarm or abnormal situation Network I...

Страница 85: ...a COM It is mainly for device debug Indicator light The RUN light is on when device has booted up and is working M S is main control indicator light The light is on when system is working properly The...

Страница 86: ...cator light Reserved 5 5 2 Rear Panel The rear panel has two types single power and redundancy power These two types have slight difference on the power module and fan module Please check carefully Th...

Страница 87: ...rt 5 COM Access system via COM It is mainly for device debug 6 Indicator light The RUN light is on when device has booted up and work properly M S is main control indicator light The light is on when...

Страница 88: ...anel SN Port Function 1 Fan It is for case ventilation 2 Power port Connect to AC power supplying source 3 Main control module It is about all kinds of ports and indictor light introduction Please ref...

Страница 89: ...is off when HDD access speed is normal OUT port Connect OUT port to the sub level disk array enclosure to realize cascade connection OUT port indicator light The Link light is on when OUT port has con...

Страница 90: ...5 Network indicator light Reserved 5 7 2 Rear Panel The rear panel has two types redundancy power and 4 power These two types have slight difference on the power module and fan module Please check car...

Страница 91: ...duction Please refer to the following sheet Please refer to the following sheet for detailed information of the main control module Port Indicator Light Function IN port indicator light Link Access Th...

Страница 92: ...tor Light Function CONSOLE COM port It is to debug the device and view the login command interface RUN The light is flashing after system booted up and begins running M S Slave control indictor light...

Страница 93: ...e following sheet for host model they can connect to and then recommend HDD amount and max HDD amount Enclosure Host ESS3116D J ESS3124D J ESS5016D Cascade No 4 4 HDD No 80 112 ESS5024D Cascade No 4 4...

Страница 94: ...ESS Series User s Manual 85 Figure 5 17 When connect the ESS50XXS to the ESS31XXS J the interface is shown as below See Figure 5 18...

Страница 95: ...in control module of the host respectively Otherwise it may result in disk array enclosure error if you misconnect or forgot to connect the SAS cable Here we are going to connect the ESS50XXD to the E...

Страница 96: ...array enclosure and host connection Please make sure you have booted up disk array enclosure before you boot up the host a Refer to Figure 5 1 to connect the power cable to the power port b The power...

Страница 97: ...information interface to view disk array enclosure disk information Please refer to chapter 3 4 1 Add RAID On Raid interface select a RAID group on the disk array enclosure Please refer to chapter 3...

Страница 98: ...nd password is 888888888888 Figure 5 20 b From System Upgrade interface and then select disk array enclosure type from the dropdown list See Figure 5 21 Figure 5 21 c Click Browse button select the ap...

Страница 99: ...e shut down the host according to the system dialogue box and then reboot the disk array enclosure Finally boot up host 5 12 3 Check Update Result After the update operation from the system Enclosure...

Страница 100: ...ime the RAID10 has the low storage space usage rate 50 as the RAID1 RAID10 RAID10 assembles RAID0 and the RAID1 It uses the high read write speed of the RAID0 and the generally high data protection an...

Страница 101: ...of drives each of which is accessed directly as an independent drive 2 6 3 RAID Capacity Calculation RAID Name Total Space of the N disks RAID60 N 2 span min capacityN RAID50 N span min capacityN RAID...

Страница 102: ...t button after the corresponding RAID group click Remove button of the damaged disk and click Save button See Figure 7 1 Figure 7 1 c Remove the disk from the HDD bracket Usually we do not recommend h...

Страница 103: ...S Series User s Manual 94 You can only add disk to the degrading RAID6 RAID5 RAID1 group After the add operation RAID status becomes ready Its status becomes working after the synchronization operatio...

Страница 104: ...I Initiator software Connect to iSCSi share of host internet intelligent storage device via iSCSI Initiator Map iSCSI storage as local disk Partition and format the disk iSCSI Initiator software Pleas...

Страница 105: ...et intelligent storage device IP address and then click Ok button See Figure 8 3 Figure 8 3 1 Click target button to view 3116 internet intelligent storage device share situation See Figure 8 4 Here y...

Страница 106: ...ESS Series User s Manual 97 Figure 8 4 5 In Figure 10 4 select one iSCSI share and then click Log on button See Figure 8 5...

Страница 107: ...lease enable auto connect function See Figure 8 6 Figure 8 6 6 Now there is two situations When ISCSI share device has no valid user Click OK button now you can see the selected iSCSI device status be...

Страница 108: ...OK you can access iSCSI share now See Figure 8 7 Figure 8 7 Map iSCSI of ESS internet intelligent storage device as local disk 1 Right click my computer icon and then click manage item Select disk man...

Страница 109: ...rtition See Figure 8 10 Figure 8 10 4 Please follow the instructions to set and format the disk 5 After formatting the iSCSI share will be displayed as newly added volume and has its own driver number...

Страница 110: ...ESS Series User s Manual 101 Figure 8 11...

Страница 111: ...und Before the operation please connect network cable or COM cable 9 1 Login Please download Putty software and copy it to your PC Double click you can see an interface shown as in Figure 9 1 If you l...

Страница 112: ...SS Series User s Manual 103 Figure 9 2 Click Open button and then input user name and password at the pop up window Default user name is dh_admin and password is 666666666666 See Figure 9 3 Figure 9 3...

Страница 113: ...sword In Figure 9 4 select Password Reset and then click Enter button you can reset admin password to login the WEB The default password is 888888888888 9 2 3 Network Settings In Figure 9 4 select Net...

Страница 114: ...is an open and cross platform running mechanism for the user to ask for file or print service from the server It is a standard server message block SMB protocol widely used in personnel PC and work s...

Страница 115: ...ESS Series User s Manual 106 Degraded status It is a status after you remove one disk from the RAID1 RAID5 working status or remove two disks from RAID6...

Страница 116: ...d EFUP period the toxic or hazardous substance or elements contained in products will not leak or mutate so that the use of these substances or elements will not result in any severe environmental pol...

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