Auto Tiering
211
11.2.1.
Auto Tiering Architecture
A newly created auto tiering pool is based on thin provisioning technology. Each tier works
based on one or more disk group. Every disk group must have the same disk quantity when
creating a tiering pool as a base unit of disk group. Maximum quantity of disk in a disk
group is 8. For example, if your system is 12 bays, you can insert 4x SSDs, 4x SAS HDDs,
and 4x NL-SAS HDDs to build an auto tiering pool configured in RAID 5. If you have 24 bays,
you can have a pool with 8x SSDs, 8x SAS HDDs, and 8x NL-SAS HDDs. The following is the
storage architecture of an auto tiering pool.
Figure 11-3
Storage Architecture of Auto Tiering Pool
To increase the capacity of an auto tiering pool, any tier (disk group) which contains either
one tier of SSDs, SAS HDDs, or NL-SAS HDDs can be added to the pool any time. Similar as
thin provisioning, every new added tier (disk group) must have the same quantity of disk
drives. A thin provisioning pool can have up to 32 disk groups with each disk group contains
up to 8 disk drives. For tiering, the quantity of lowest tier (disk group) must be larger or
equal to the higher ones. The maximum capacity of each disk group is 64TB. So the
maximum capacity of an auto tiering pool in a system is 256TB.
Table 11-2
Auto Tiering Pool Parameters
Item
Value
Maximum Tiers
3
Maximum Disk Group Quantity in an Auto Tiering Pool
32
Maximum Disk Drive Quantity in a Disk Group
8
Summary of Contents for XCubeSAN XS5224D
Page 71: ...SANOS User Interface 49 nnnnn RPM Power Supply Local PSU n status Reset to Default Yes No...
Page 99: ...System Settings 77 Figure 6 14 System Information...
Page 315: ...Monitoring 293 Figure 13 5 Hardware Monitoring...
Page 327: ...Support and Other Resources 305 Figure 15 1 Download Service Package in the SANOS UI...
Page 331: ...Support and Other Resources 309...