Solstice DiskSuite Command Summary

Having a sort out and found this course handout originally written by John Furlong - Sun Trainer in 23/10/2002  (Free to distribute).

Reminder of days gone by, DiskSuite 1.1 on SunOS 4.1 to Solaris Volume Manager Solaris 10, these were day-to-day commands for me.

State Database Operations.
Operation	Command Example.
Create first database replica	metadb –a –f c0t0d0s7
Create additional replicas (2 copies in single partition)	metadb –a –c2 c1t1d0s7
Create the database as defined in the mddb99 entry in md.tab.	metadb –a mddb99
Delete replicas.	metadb –d c1t0d0s7
Check status of databases.	metadb

Simple Metadevice Operations.
Operation		Command Example.
Create metadevice with a single partition.		metainit d22 1 1 c1t5d0s3
Create metadevice, concat over 2 partitions.		metainit d22 2 1 c1t5d0s5 1 c1t6d0s4
Create metadevice, striped across 2 partitions.		metainit d22 1 2 c1t5d0s4 c2t5d0s4
Create metadevice striped across 2 partitions with a chunk size of 64K		metainit d22 1 2 c1t5d0s4 c2t5d0s4 -i 64K
Create all metadevices in md.tab		metainit –a
Create a raid5 metadevice over 3 partitions.		metainit d50 –r c1t0d0s3 c2t0d0s3 3t0d0s3
Delete metadevices.		metaclear d50 (Single), metaclear –a (ALL)
Check status of metadevices.		metastat
Create a metatrans device.	metainit d50 –t c1t5d0s5(Master) c1t2d0s1(Log)

Growing Metadevices.
Operation	Command Example.
Attach single partition to metadevice.	metattach d45 c1t5d0s4
Attach a 2 partition stripe to metadevice.	metattach d45 c1t4d0s5 c2d4d0s5
Grow file system on resized metadevice.	growfs –M /mnt /dev/md/rdsk/d45

Hotspare Operations. Note:- xxx is either the hot spare pool (hsp001) or all for all hot spare pools.
Operation	Command Example.
Create a hot spare pool.	metahs –a hsp001 c1t5d0s4
Add partition to hot spare pool.	metahs –a xxx c2t5d0s4
Delete partition from hot spare pool.	metahs –d xxx c2t5d0s4
Replace failed partition in hot spare pool.	metahs –r xxx c1t5d0s3 (Old) c1t6d0s3(new)
Enable partition.	metahs –e c1t5d0s4
Attach hot spare pool to sub-mirror.	metaparam –h hsp000 d55
Remove hot spare pool from sub-mirror.	metaparam –h none d55
Check status of hot spare pool.	metahs –i

Soft Partition Operations.
Operation	Command Example.
Partition disk & create 1Gb soft partition.	metainit d50 –p –e c1t5d0 1g
Create 2Gbyte soft-partition from disk partition.	metainit d50 –p c1t0d0s0 2g
Create 2Gbyte soft partition from metadevice.	metainit d50 –p d10 2g
Grow soft partition by 5GByte.	metattach d50 5g
List soft partitions & free space disk partition.	metarecover –v –n c1t0d0s0 -p
Recover soft partitions from database info.	metarecover c1t0d0s0 –p -m
Recover soft partitions from disk info.	metarecover c1t0d0s0 –p -d
Delete all soft-partitions on slice.	metaclear –p c1t0d0s4

Mirror Operations.
Operation	Command Example.
Create a mirror with 1 sub-mirror. (d20 is the mirror, d21 is the sub-mirror.)	metainit d21 1 1 c1t0d0s3 metainit d20 –m d21
Create and attach 2nd. sub-mirror. (d20 is the mirror, d22 the attached sub-mirror.)	metainit d22 1 1 c1t1d0s3 metattach d20 d22
Create mirror with 2 sub-mirrors. (d20 is the mirror.) (d21 and d22 are the sub-mirrors.)	metainit d21 1 1 c1t5d0s5 metainit d22 1 1 c1t6d0s0 metainit d20 –m d21 d22
Detach sub-mirror from mirror. (d20 is the mirror, d21 the sub-mirror)	metadetach d20 d21
Attach sub-mirror to mirror.(Causes full sync)	metattach d20 d21
Offline a sub-mirror.(remains part of mirror)	metaoffline d20 d21
On-line a sub-mirror. (Causes partial sync)	metaonline d20 d21
Delete a mirror and all its’ sub-mirrors.	metaclear –r d20
Change read policy of mirror.	metaparam –r roundrobin d20 metaparam –r geometric d20 metaparam –r first d20
Change write policy of mirror.	metaparam –w parallel d20 metaparam –w serial d20
Change pass number of resync at boot time. 0=skip, 1=first, 9=last.	metaparam –p 2 d20

Disk and Partition Replacement Operations.
Operation	Command Example.
Copy partition table from existing disk to new disk. prtvtoc /dev/rdsk/c1t0d0s2 (existing) | fmthard –s - /dev/rdsk/c1t2d0s2 (new)
Enable a partition that has been replaced.	metareplace –e d50 (Mirror) c4t5d0s4
Replace failed partition with another.	metareplace d50 c1t5d0s4(old) c1t6d0s4(New)

Metaset Operations.
Operation	Command Example.
Create metaset with 1 host.	metaset –s MySet –a –h grommit
Add host to set.	metaset –s MySet –a –h wallace
Delete host from set.	metaset –s MySet –d –h wallace
Add disks to set.	metaset –s MySet –a c1t5d0 c1t6d0
Delete disks from set.	metaset –s MySet –d c1t6d0
Release ownership of set.	metaset –s Myset –r
Take ownership of set.	metaset –s MySet –t
Force takeover of ownership of set.	metaset –s MySet –t –f
After metaset creation normal commands can be used by selecting the set to work with. e.g., metainit –s MySet d44 1 1 c5t4d0s6

Graphical Interface Operation.

metatool [-s SetA ]

/etc/opt/SUNWmd/md.tab (Up to version 4.2), /etc/lvm/md.tab (From version 4.2.1)

Soft partitions are available in Solaris 9 or 4.2.1 with patch 108693-xx