HP XP7 Owner Guide (H6F56-96006)

Cache memory
Your XP7 can be configured with up to 512 GB of cache memory per controller chassis (1 TB for
a two-module system). Each controller chassis can contain from two to eight cache memory adapter
boards. Each board contains from 8 GB to 64 GB.
Cache memory adaptor boards are installed in pairs and work together to provide cache and
shared memory for the system. Each pair is called a cluster. From one to four cache clusters can
be installed in a controller.
Table 16 Drive Specifications
Speed (RPM)Drive Capacity
Size (inches)
1
Drive Type
15,000300 GB2-1/2HDD (SAS)
10,000300 GB, 600 GB, 900 GB
7,2001 TB
7,2004 TB3 1/2
n/a400 GB, 800 GB2-1/2SSD (Flash)
1
n/a1.6, 3.2 TB5.55 x 12.09 x 0.78FDM (flash module)
1
Each drive size requires its own chassis.
Minimum number of drives - Four HDDs or SSDs per controller chassis (two in upper half, two in
lower half). HDDs or SSDs must be added four at a time to create RAID groups, unless they are
spare drives. The minimum number of operating FMD drives is four, one in each FMU in the FBX
chassis. Spares are additional.
Table 17 Maximum Number of Drives
Dual Module (6-rack system)
Single Module (3-rack
system)Drive ChassisDrive Type (inches)
20481024128HDD, 2-1/2
2304115296HDD, 3-1/2
256
3
128
3
128
2
SSD, 2-1/2
1
19296448FMD
4
1
Each drive size requires its own chassis.
2
SSD drives can be mounted all in one drive chassis or spread out among all of the chassis in the
storage system.
3
Recommended maximum number.
4
FMD drives are not the same form factor as HDDs or SSDs and require an FBX chassis. See “XP7
flash module” (page 65).
System capacities with smart flash modules
The following table lists the XP7 system storage capacities when using FMDs.
68 System components