IBM DS3500, Инструкция по установке, использованию и обслуживанию

Страница: 20 / 193

Use “Hard disk drive locations” on page A-1 to keep a record of the drives that are installed in or
attached to the DS3500 storage subsystem and EXP3500 storage enclosure. This information can be
helpful when you install additional drives or if you have to report a hardware problem. Make a copy of
this table before you record information in it, in case you need extra space to write new values later, or
when you update the DS3500 storage subsystem and EXP3500 storage enclosure configuration.
DS3500 storage subsystem overview
With direct-attached Serial Attached SCSI (SAS) connectivity and support for RAID levels 0, 1, 3, 5, and 6,
the DS3500 storage subsystem provides an internal physical storage capacity that is scalable up to 36 TB
(terabytes) for the DS3512 and 24 TB for the DS3524 storage subsystem.
Note:
1. RAID 6 uses a P+Q design implementation.
2. When RAID level 1 is implemented and the number of drives increases to more than two, RAID level
10 is automatically implemented.
The DS3500 is a 2U rack-mountable storage subsystem that supports up to two redundant, dual-active
RAID storage controllers. The DS3500 storage subsystem comes standard with two 6 Gbps x4 SAS host
ports and a single 6 Gbps x4 SAS expansion port per controller. Each controller contains 1 GB of cache
memory that is upgradable to 2 GB of cache. Also, each controller supports the installation of the
following host port adapters:
v
6 Gbps SAS
v
8 Gbps FC
v 1 Gbps iSCSI
v 10 Gbps iSCSI
When attached to EXP3500 storage enclosures, the DS3500 storage subsystem can be expanded to support
96 drives. This can be expanded to 192 drives when using the 96-192 drive expansion upgrade. The
DS3500 storage subsystem and EXP3500 storage enclosures support configurations of 6 Gbps SAS, Near
Line (NL) SAS, Solid State Disk (SSD), 6 Gbps SAS Full Disk Encryption (FDE) disk drives, or a mix of
disk drives. To use the FDE disk encryption functionality, you must purchase the Full Disk Encryption
option.
Advanced DS3500 storage management, copy service options, and optional advanced disaster recovery
functions are available for the DS3500, including FlashCopy
®
, VolumeCopy, and Enhanced Remote
Mirroring.
Serial number label
Product name
Machine type, model, and
serial number label
Figure 1-1. Serial number label, and product name, machine type, and model number label locations
1-2
System Storage DS3500 and EXP3500: Installation, User's, and Maintenance Guide