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GPFS: Administration and Programming Reference - IRA Home

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mmlsdisk Comm<strong>and</strong><br />

disk driver sector failure holds holds storage<br />

name type size group metadata data status availability pool<br />

-------- ------- ------ ------- -------- ----- ------- ------------ -------<br />

gpfs2nsd nsd 512 4002 yes yes ready up system<br />

2. To display the current states of gpfs2nsd, gpfs3nsd, <strong>and</strong> gpfs4nsd, <strong>and</strong> display their respective disk<br />

ids <strong>and</strong> the descriptor quorum assignment, issue this comm<strong>and</strong>:<br />

mmlsdisk /dev/fs0 -d "gpfs2nsd;gpfs3nsd;gpfs4nsd" -L<br />

The system displays information similar to:<br />

disk driver sector failure holds holds storage<br />

name type size group metadata data status availability disk id pool remarks<br />

--------- ------ ------ ------- -------- ----- ------ ------------ ------- -------- -------<br />

gpfs2nsd nsd 512 4002 yes yes ready up 2 system desc<br />

gpfs3nsd nsd 512 4002 yes yes ready up 3 system<br />

gpfs4nsd nsd 512 4002 yes yes ready up 4 system<br />

Number of quorum disks: 3<br />

Read quorum value: 2<br />

Write quorum value: 2<br />

3. To display the whether the I/O is performed locally or using an NSD server, the NSD server name, <strong>and</strong><br />

the underlying disk name for the file system named test, issue this comm<strong>and</strong>:<br />

mmlsdisk test -M<br />

The system displays information similar to:<br />

Disk name IO performed on node Device Availability<br />

------------ ----------------------- ----------------- ------------<br />

gpfs7nsd localhost /dev/gpfs2vsd up<br />

gpfs10nsd k5n88.kgn.ibm.com /dev/gpfs3vsd up<br />

gpfs4nsd localhost /dev/hdisk10 up<br />

4. To display the same information as in Example 3, but limited to the node on which the comm<strong>and</strong> is<br />

issued, issue this comm<strong>and</strong>:<br />

mmlsdisk test -m<br />

The system displays information similar to:<br />

Disk name IO performed on node Device Availability<br />

------------ ----------------------- ----------------- ------------<br />

gpfs7nsd localhost /dev/gpfs2vsd up<br />

gpfs10nsd k5n88.kgn.ibm.com - up<br />

gpfs4nsd localhost /dev/hdisk10 up<br />

See also<br />

“mmadddisk Comm<strong>and</strong>” on page 62<br />

“mmchdisk Comm<strong>and</strong>” on page 94<br />

“mmdeldisk Comm<strong>and</strong>” on page 151<br />

“mmrpldisk Comm<strong>and</strong>” on page 259<br />

204 <strong>GPFS</strong>: <strong>Administration</strong> <strong>and</strong> <strong>Programming</strong> <strong>Reference</strong>

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