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Appendices 

 

         

 

              

User Guide 

 

Page 5-3 

 

5.2.5 

RAID 0+1: Striped Set with Mirroring 

RAID 0+1 combines the advantages of RAID 0 and RAID 1 with no disadvantages. RAID 0+1 
creates a mirror of the primary striped set. RAID 0+1 provides optimal speed and reliability.   

 

 

5.2.6 

Enhance JBOD: Single Disk 

Enhance JBOD is just export single disk to the host system. The capacity and speed are the 
same as the original single disk. 

 

 
 

 

RAID 

Level 

 

Data Format 

 

Minimum 

Drive 

 

Total Capacity

 

(N = number of drive) 

 

Redundancy 

 

Performance 

 

RAID0 

 

Stripe 

 

2 

 

Single Drive * N 

 

None 

 

High 

 

RAID1 

 

Mirror 

 

2 

 

Single Drive * 1 

 

N – 1 

 

Low 

 

RAID5 

 

Stripe with 1 

Parity 

 

3 

 

Single Drive * (N-1) 

 

1 

 

Medium 

 

RAID6 

 

Stripe with 2 

Parities 

 

4 

 

Single Drive * (N-2) 

 

2 

 

Medium 

 

RAID 0+1 

 

 Mirror 

 

4 

 

Single Drive * (N/2) 

 

2 

 

Low 

 

Enhance 

JBOD 

 

Single Drive 

 

1 

 

Single Drive * 1 

 

None 

 

Low 

 

 

 
 
 
 
 

Содержание A12T3-Share

Страница 1: ...A12T3 Share User Guide Accusys Storage Ltd Version V1 1...

Страница 2: ...Revision Sheet User Guide Page i Revision Sheet Release No Date Revision Description V1 0 2017 6 Officially released V1 1 2017 6 Content updated...

Страница 3: ...r equipment or loss of data if the safety instruction is not observed Note This indicates useful tips on getting the most from your RAID system Trademarks Accusys and the names of Accusys products and...

Страница 4: ...with Part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference 2 This device must accept any interference received including interf...

Страница 5: ...el 1 5 2 Prepare to Install the A12T3 Share 2 1 2 1 Precaution for Handling the System 2 1 2 2 Choose Location for the System 2 1 2 3 Electrical Power 2 1 2 4 Operating Environment 2 2 2 5 Security 2...

Страница 6: ...ot 4 19 4 6 7 Health Center 4 22 4 6 8 Unlock Drives 4 23 4 7 Update the RAID System Firmware 4 25 4 8 Download Controller Log 4 26 4 9 Disk RW Test 4 26 5 RAID Overview 5 1 5 1 How RAID Works 5 1 5 2...

Страница 7: ...1 Introduction User Guide 1 Introduction of Shareable Thunderbolt RAID System...

Страница 8: ...Media and Entertainment budgets and workflows The advanced technology and innovative thinking will eliminate the high cost of Fibre Channel SAN or 10 Gigabit Ethernet The A12T3 Share is equipped with...

Страница 9: ...evel migration Support write back and write through caching of controller and drive Automatic rebuilding Disk RW Test to measure the real IO throughput on each disk Disk health monitoring by S M A R T...

Страница 10: ...ing list or the inside flap of the box and your original purchase order You should have the items as described in the sections below The accessories package includes the following items These items ca...

Страница 11: ...3 1 Front Panel LED Indicators No Name Description 1 Power Button Click to power up Push for 5 seconds to shut down 2 Disk 1 12 status Green disk online Red disk fail or offline Green Red Switching di...

Страница 12: ...5 1 3 2 A12T3 Share Rear Panel No Name Description 1 RAID controller The controller of RAID system 2 QR code Scanned to link to Accusys website 3 Power Supply Support 100 240V power input 4 Hard Driv...

Страница 13: ...neer debugging only 4 Mute button Click to mute system beeper alert 5 T Share Expansion switch Setting the chassis to be Master or Slave 6 JBOD Expansion port Expanding to another JBOD enclosure LED1...

Страница 14: ...2 Preparation User Guide 2 Prepare to Install the A12T3 Share...

Страница 15: ...n is you should keep the following in mind when determining where to place your system 1 Measure the available space of your desk for the space required for the A12T3 Share Refer to chapter 1 1 2 for...

Страница 16: ...e operating environment for the A12T3 Share must meet certain requirements 1 Verify that the temperature range of the chosen location is within the limits established for the system and all other comp...

Страница 17: ...3 Installation User Guide 3 Install the A12T3 Share...

Страница 18: ...ith connector align with the edge of the disk tray and secure drive with screws as below figures Four screws for 3 5 Three screws for 2 5 2 Slide the disk tray into the disk bays of the chassis 3 Push...

Страница 19: ...accessory package to connect the EXP port of A12T3 Share and SAS port of A12S3 SJ 2 Set ID dip switch of A12S3 SJ to 1 Note If you have three A12S3 SJ JBOD enclosures set ID as below 1st A12S3 SJ ID...

Страница 20: ...www accusys com tw support download html If you need further technical support please contact your reseller or Accusys support team see Appendix B Customer Service and Technical Support for more infor...

Страница 21: ...xpansion by connecting 2 A12T3 Share RAID systems refer to Chapter 3 5 T Share Expansion Follow the steps below to setup a host connection 1 Connect cable to one of host port Note 1 Use valid Thunderb...

Страница 22: ...ws large workgroups to simultaneously collaborate on projects with extreme workflow efficiency Requirement Two A12T3 Share RAID systems 2M PCIe cable Installation 1 Set T Share Expansion switch of 1st...

Страница 23: ...ll T share devices are pre installed with Accusys Mac Installer which includes the driver for T Pairing Once the driver is installed it will automatically communicate with the T Share RAID controller...

Страница 24: ...t with two Thunderbolt cables 3 Power on Host and install Accusys Installer 4 Create an array check Assign LUN automatically and select 2 Thunderbolt host ports Note T Pairing does not support Hot Plu...

Страница 25: ...4 How to Use User Guide 4 RAIDGuardX...

Страница 26: ...nd RAID controller it MUST be installed to the host directly connected to RAID system 4 1 1 Menu Bar The menu bar across the top contains the following functions Function Description File Exit Close t...

Страница 27: ...nable Disable NCQ mode Enable Disable SMART Mode Enable Disable Beeper Enable Disable Equalization Enable Disable Cache of controller and drives can be enable disable MISC for controller Time setup Op...

Страница 28: ...ller tab Manual Add Controller type the remote host IP address Where the RAIDGuard Server installed is click search to display all available controllers 2 Click on a controller and enter password defa...

Страница 29: ...select host port 2 You can change the setting of host port on Options LUN connect 2 Select the RAID level from the drop down menu Available levels are 0 1 5 6 0 1 enhanced JBOD Find more details in Ch...

Страница 30: ...AID system during the initialization Performance evaluation Select to evaluate the performance of the target array It will take no time for array initialization there is no data protection only for te...

Страница 31: ...RAIDGuardX then it will pop up a dialog as below picture 2 Click on the drive icon of the array to be deleted 3 Check the Confirm box Click Delete Array to complete the process Note Array cannot be d...

Страница 32: ...est Email to check that the e mail is working 2 SMTP Setting Mail Server Name Enter the address of the mail server From Email Address Enter the e mail address of the mail server 3 SMTP Server Set auth...

Страница 33: ...the stability and continuity of the RAID performance In RAID 5 and RAID 6 DLP prevents the aging or slow responds of a single hard disk from influencing the overall performance The advantage of this f...

Страница 34: ...ent sequences of the two hard disks are the same 1 2 3 4 However the access sequence in NCQ mode may vary to improve the performance 4 5 3 SMART Mode S M A R T is a monitoring system of disk drives to...

Страница 35: ...ode Regardless the transmission method the data transmission speed cannot be guaranteed at all times This feature allows the continuous I Os to operate more smoothly and substantially reduce large flu...

Страница 36: ...re needs to be able to constantly write data to the RAID storage without long latency Read Pre fetch Identifies sequential access patterns and aggressively pre fetches patters into cache From the drop...

Страница 37: ...Enter the new controller password The default password is 00000000 8 zeros Type another 8 characters Password Confirmation Confirm the new controller password Note If you forget your password you will...

Страница 38: ...e LUN and appears as a separate volume on the host computer After slicing the LUN map must be set for each slice Slicing concept Follow the steps below to select an array to slice or merge Usage Scena...

Страница 39: ...slices cannot exceed 16 4 6 2 LUN Map LUN which stands for Logical Unit Number is used to identify a logical unit in computer storage When creating an array you may select Assign LUN automatically to...

Страница 40: ...can manually define LUN can be visible by which host port 1 Select the array to connect by clicking on a drive with an array number 2 Select a LUN in Select LUN area 3 Check the Confirm box and click...

Страница 41: ...performance is affected considerably You may check the progress of Expansion in the main view Example Note The new hard drive must larger than the existing drives of array Follow the steps below to s...

Страница 42: ...ng RAID 0 11 drives RAID 5 12 drives Migrating RAID 6 13 drives RAID 5 12 drives Migrating RAID 0 1 22 drives Example 2 Example 3 Note The new hard drive must larger than the existing drives of array...

Страница 43: ...5 RAID User Guide Page 4 18 3 The main array information screen will indicate that the array is currently migrating...

Страница 44: ...by splitting the source and target after the background sync is completed The I O mirroring is stopped and the difference is under tracking in a bitmap table to support fast re sync Create Shot Creat...

Страница 45: ...Shot function from the drop down menu 2 Select the Split Now radio button 3 Select the required shot by clicking on the Shot No radio button From the respective drop down menus select the source volu...

Страница 46: ...ed shot This function can speed up mirroring for previous snapshots 1 Select the Resynchronize shot function from the drop down menu 2 Select the required shot by clicking on the Shot No radio button...

Страница 47: ...dition 2 Click the radio button to Rebuild the parity data Rebuilding parity on an array uses the data on the array to create new parity data no repair problems with the data Verify the parity data Ve...

Страница 48: ...ou unlock the drive it will be added directly to the array if there has not been drive access during the locked period Otherwise the controller will rebuild parity data on the drive when the drive is...

Страница 49: ...5 RAID User Guide Page 4 24 2 Check the Confirm box and click Unlock Drive...

Страница 50: ...pt RAID system during updating in order to avoid any damage Firmware update time will take 2 5 minutes 3 Select Controller in the Menu bar move to Update Update System Code in drop menu 4 Choose corre...

Страница 51: ...of disks begins to drop down in Read Write the entire RAID system would slow down and sometimes SMART function cannot figure out which one is the slow disk Disk RW Test funtion executes read write te...

Страница 52: ...5 RAID User Guide Page 4 27 3 Display test result on Event page Spare disks Array Member disks...

Страница 53: ...5 RAID User Guide 5 RAID Overview...

Страница 54: ...way of controller stores and retrieves data on the RAID system is determined by the RAID level and storage method you choose Once you have defined a group of drives as an array group each logical disk...

Страница 55: ...arity information across all drives in a set RAID level 5 achieves high reliability and data availability which allows one of the array member disk to have failure and keeps the storage working Disk f...

Страница 56: ...is just export single disk to the host system The capacity and speed are the same as the original single disk RAID Level Data Format Minimum Drive Total Capacity N number of drive Redundancy Performa...

Страница 57: ...Appendices User Guide Page 6 1 6 Appendix...

Страница 58: ...achieving the expected level following reasons could be the cause a some of hard drives does not work well b too many fragmented data To replace problematic drives and try to run defragment function...

Страница 59: ...r to below table of Beeper Code for more detail Beeper mode Description 1 short beep boot up RAID system is ready 1 short beep Array init rebuild expansion migratrion 2 short beeps Wrong ID setting of...

Страница 60: ...RAID controller log by Dump controller log of RAIDGuardX 2 Host operation system log with RAID related error C 2 Contact Us Email us for customer services and technical support Sales sales accusys com...

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