Ds3500 Storage Subsystem Overview; Serial Number Label, And Product Name, Machine Type, And Model Number Label Locations - IBM DS3500 Installation, User & Maintenance Manual

Serial number label
Figure 1. Serial number label, and product name, machine type, and model number label
locations
Use Table 15 on page 142 to keep a record of the hard disk drives that are installed
in or attached to the DS3500 storage subsystem and EXP3500 expansion
enclosure. This information can be helpful when you install additional hard disk
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 expansion
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 24 TB (terabytes) for the DS3512
and 12 TB for the DS3524 storage subsystem.
Notes:
1. RAID 6 uses a P+Q design implementation.
2. When RAID level 1 is implemented and the number of hard disk drives
The DS3500 is a 2U rack-mountable storage subsystem that supports up to two
redundant, dual-active RAID 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 RAID 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
The DS3500 storage subsystem supports up to 96 hard disk drives when attached
to EXP3500 expansion enclosures. The DS3500 storage subsystem and EXP3500
expansion enclosures support configurations of 6 Gbps SAS, Near Line (NL) SAS,
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.
2
System Storage DS3500 and EXP3500: Installation, User's, and Maintenance Guide
Product name
increases to more than two, RAID level 10 is automatically implemented.
Machine type, model, and
serial number label