You can use the nlvm list devices command to view information about each of the active devices on the system. For command usage information, see List Devices
in the OES 2015 SP1 Beta: NLVM Reference.
The command returns the following information:
Parameter |
Description |
Sample Values |
---|---|---|
Device name |
Displays the node name of the device in the /dev directory. |
sde |
Size |
Displays the total amount of space on the device. |
11.0GB |
Free |
Displays the amount of free unpartitioned space on the device. |
0KB 199.50GB |
Format |
Displays the partitioning scheme used to format the device. MSDOS supports devices up to 2 TB in size. GPT supports devices of any size. |
MSDOS GPT |
Shared |
Displays whether the Shareable for Clustering setting is enabled or disabled. The Shareable for Clustering setting should be enabled for devices used in clustered NSS pools and for SBD partitions. |
Yes, enabled No, disabled |
RAID |
Displays whether the device is used as a segment in an NSS software RAID device. |
Yes or No |
If the more option is specified, the information returned for each device is the same as for the nlvm list device command.
Log in to the server as the root user, then open a terminal console.
View a list of active devices by entering
nlvm list devices [more|all] [exclude=<raid|nonraid|shared|nonshared|lvm|nonlvm>]
For example:
nlvm list devices Name Size Used Free Format Shared RAID Enabled sda 11.00GB 9.29GB 1.70GB MSDOS No No sdb 102.00MB 102.00MB 0KB MSDOS Yes No sdc 102.00MB 102.00MB 0KB MSDOS Yes No sdd 512.00MB 0KB 0KB None No No sde 512.00MB 0KB 0KB None No No clus1.sbd 99.57MB 99.57MB 0KB None Yes 1 Yes
nlvm list devices more Name Size Used Free Format Shared RAID Sync Maj:Min sda 11.00GB 9.29GB 1.70GB MSDOS No No 8:0 sdb 102.00MB 102.00MB 0KB MSDOS Yes No 8:16 sdc 102.00MB 102.00MB 0KB MSDOS Yes No 8:32 sdd 512.00MB 0KB 0KB None No No 8:48 sde 512.00MB 0KB 0KB None No No 8:64 clus1.sbd 99.57MB 99.57MB 0KB None Yes 1 Yes 253:0
nlvm list devices all Name=sda Size=11.00GB(23068672) Used=9.29GB(19486720) Free=1.70GB(3581952) Format=MSDOS Shared=No RAID=No M:M=8:0 H:S=255:32 Partitions on the device: Part Type Size Sectors Pool sda1 Linux 297.00MB 608256 sda2 Linux Swap 1.00GB 2105344 sda3 Linux 7.99GB 16771072 Name=sdb Size=102.00MB(208896) Used=102.00MB(208896) Free=0KB(0) Format=MSDOS Shared=Yes RAID=No M:M=8:16 H:S=255:32 Partitions on the device: Part Type Size Sectors Pool clus134.msbd0 Cluster 99.59MB 203968 Name=sdc Size=102.00MB(208896) Used=102.00MB(208896) Free=0KB(0) Format=MSDOS Shared=Yes RAID=No M:M=8:32 H:S=255:32 Partitions on the device: Part Type Size Sectors Pool clus134.msbd1 Cluster 99.59MB 203968 Name=sdd Size=512.00MB(1048576) Used=512.00MB(1048576) Free=0KB(0) Format=MSDOS Shared=No RAID=No M:M=8:48 H:S=255:32 Partitions on the device: Part Type Size Sectors Pool sdd1 Linux LVM 509.98MB 1044448 Name=sde Size=512.00MB(1048576) Used=16KB(32) Free=511.98MB(1048544) Format=MSDOS Shared=No RAID=No M:M=8:64 H:S=255:32 Name=sdf Size=512.00MB(1048576) Used=16KB(32) Free=511.98MB(1048544) Format=MSDOS Shared=No RAID=No M:M=8:80 H:S=255:32 Name=sdg Size=716.00MB(1466368) Used=32KB(64) Free=715.95MB(1466271) Format=GPT Shared=No RAID=No M:M=8:96 H:S=255:32 Name=clus134.sbd Size=99.57MB(203936) Used=99.57MB(203936) Free=0KB(0) Format=None Shared=Yes RAID=1 Sync=Yes M:M=253:0 H:S=255:32 Segs=2 Enbl=Yes Segments of the RAID: Segment Name Device Size Sectors Sync 0 clus134.msbd0 sdb 99.59MB 203968 Yes 1 clus134.msbd1 sdc 99.59MB 203968 Yes