Tandem Capacity Model (TCM) Manual

NOTE: SSD disks does not have any moving parts. Therefore, rotational speed, read seek time,
and write seek time are not applicable.
Table 5 (page 47) lists the disks supported by TCM along with their model numbers, rotational
speeds, controllers, and subtypes.
NOTE: Measure may not display the disk model number correctly. Physical checking of disk
model number used during measurement is recommended.
ACTUALDISK51 Entry
Effective with SPR T6042H01^ABD and later, SAS disks are associated with subtype 51. Therefore,
ACTUALDISK51 is used to specify which SAS disk is in use.
CLIM is the default controller for all SAS disks models.
The syntax follows:
ACTUALDISK51 m [w]
where:
m
is the actual disk model number associated with the subtype 51.
[w]
specifies the write cache enable (WCE) option. This is an optional entry. Allowed values are
ON and OFF. If not specified, by default OFF will be used.
Table 5 (page 47) lists the disks supported by TCM, with their model numbers, rotational speeds,
controllers, subtypes, read and write seek times.
NOTE: Measure may not display the disk model number correctly. Physical checking of disk
model number used during measurement is recommended.
ACTUALDISK52 Entry
Effective with SPR T6042H01^ABD and later, two new P9500 disk arrays that belong to the HP
XP disks family are associated with subtype52: Models AV482A and AV483A which are P9500
disk array are supported along with XP24KRG5A and XP24KRG5B.
Where,
XP24KRG5A specifies the XP24K RAID5 (3D+1P) array group.
XP24KRG5B specifies the XP24K RAID5 (7D+1P) array group.
AV482A specifies the P9500 146GB 6G SAS 15k rpm dual port hard drive.
AV483A specifies the P9500 300GB 6G SAS 15k rpm dual port hard drive.
Therefore, ACTUALDISK52 is used to specify which of the XP family disks are in use.
The syntax follows:
ACTUALDISK52 m
where:
m
is the actual disk model number associated with subtype 52.
NOTE: Measure may not display the disk model number correctly. Physical checking of disk
model number used during measurement is recommended.
52 Using MeasTCM