Veritas Volume Manager 5.1 SP1 Administrator"s Guide (5900-1506, April 2011)

ibm_ds8x000_0266 vxmediatype ssd

ibm_ds8x000_0268 vxmediatype ssd

The following command creates a volume, vol1, in the disk group dg3. rule1 is

specified on the command line, so those attributes are also applied to vol1.

# vxassist -g dg3 make vol1 100m rule=rule1

The following command shows that the volume vol1 is created off the SSD device

ibm_ds8x000_0266 as specified in rule1.

# vxprint -g dg3

TY NAME ASSOC KSTATE LENGTH PLOFFS STATE TUTIL0 PUTIL0

dg dg3 dg3 - - - - - -

dm ibm_ds8x000_0266 ibm_ds8x000_0266 - 2027264 - - - -

dm ibm_ds8x000_0267 ibm_ds8x000_0267 - 2027264 - - - -

dm ibm_ds8x000_0268 ibm_ds8x000_0268 - 2027264 - - - -

v vol1 fsgen ENABLED 204800 - ACTIVE - -

pl vol1-01 vol1 ENABLED 204800 - ACTIVE - -

sd ibm_ds8x000_0266-01 vol1-01 ENABLED 204800 0 - - -

The following command displays the attributes that are defined in rule1.

# vxassist -g dg3 help showattrs rule=rule1

alloc=mediatype:ssd

persist=extended

If no persistent attributes are defined, the following command grows vol1 on

hard disk drive (HDD) devices. However, at the beginning of this section,

mediatype:ssd was defined as a persistent attribute. Therefore, the following

command honors this original intent and grows the volume on SSD devices.

# vxassist -g dg3 growby vol1 1g

The following vxprint command confirms that the volume was grown on SSD

devices.