Query: Is it possible to create a CPG targeting specific magazines?

[WideWaters]

Hi, there is a 3PAR 8200 Store Serv system, and we are currently looking to expand its capacity.

For example, 16 SSDs are admitted to enclosure 01 in bays 1-16, which is then connected back into controller nodes enclosure 00.

The idea is to create a CPG with set size 6+2, targetting specifically those 16 SSDs, so any virtual volumes created in this CPG will essentially be SSDs, and have the ability to saturate the 10Gb iSCSI connection by the target hosts.

However, I do not see the ability create a CPG to utilize specific magazines. Thank you.

[veeyarvi]

Hi  WideWaters,

Without knowing your current configuration,  I might not be able to provide exact suggestion. However, we can perform these actions from cli.

The command 'createcpg' has options to choose magazines to be part of the CPG

• -mg <item>
Specifies one or more drive magazines. The "1." or "0." displayed in the CagePos column of showpd output indicating the side of the cage is omitted when using the -mg option. Drive magazines are identified by one or more integers (item). Multiple drive magazines are separated with a single comma (e.g. 1,2,3). A
range of drive magazines is separated with a hyphen (e.g. 0-7). The specified drive magazine(s) must contain disks.

You may specify physical disk(s) as well.
• -dk <item>

Specifies one or more physical disks. Disks are identified by one or more integers(item). Multiple disks are separated with a single comma (e.g. 1,2,3). A range of disks is separated with a hyphen (e.g. 0-3). Disks must match the specified ID(s).

Regards,

Veeyaarvi
Another option is to select the drive model
• -devid <model>
Specifies that physical disks identified by their models be selected. Models can be specified in a commaseparated list. Models can be displayed by issuing the "showpd -i" command.

If these are the only SSD drives in the array can also use devtype or rpm options
• -devtype <type>
Specifies that physical disks must have the specified device type (FC for Fast Class, NL for Nearline, SSD for Solid State Drive) to be used. Device types can be displayed by issuing the "showpd " command. If it is not specified, the default device type is FC.

• -rpm <number>
Disks must be of the specified speed. Device speeds are shown in the RPM column of the showpd command. The number does not represent a rotational speed for the drives without spinning media (SSD). It is meant as a rough estimation of the performance difference between the drive and the
other drives in the system. For FC and NL drives, the number corresponds to both a performance measure and actual rotational speed. For SSD drive, the number is to be treated as relative performance benchmark that takes into account in I/O per second, bandwidth and the access time.

Please refer the CLI guide for complete detais

[support_s]

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