12-05-2011
Software RAID on top of Hardware RAID
Server Model: T5120 with 146G x4 disks.
OS: Solaris 10 - installed on c1t0d0.
Plan to use software raid (veritas volume mgr) on c1t2d0 disk.
After format and label the disk, still not able to detect using vxdiskadm.
Question:
Should I remove the hardware raid on c1t2d0 first?
My purpose using veritas volume manager is to ease of increase the disk size when it required. If to use hardware raid, once partition and disk is used on that partition, it will not that easy to expand size. Please correct me if my understand is wrong and do advice me for better approach.
Thank you.
# raidctl
Controller: 1
Volume:c1t0d0
Volume:c1t2d0
Disk: 0.0.0
Disk: 0.1.0
Disk: 0.2.0
Disk: 0.3.0
# raidctl -l c1t0d0
Volume Size Stripe Status Cache RAID
Sub Size Level
Disk
----------------------------------------------------------------
c1t0d0 136.6G N/A OPTIMAL OFF RAID1
0.0.0 136.6G GOOD
0.1.0 136.6G GOOD
# raidctl -l c1t2d0
Volume Size Stripe Status Cache RAID
Sub Size Level
Disk
----------------------------------------------------------------
c1t2d0 136.6G N/A OPTIMAL OFF RAID1
0.2.0 136.6G GOOD
0.3.0 136.6G GOOD
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AAC(4) BSD Kernel Interfaces Manual AAC(4)
NAME
aac -- Adaptec AdvancedRAID Controller driver
SYNOPSIS
aac* at pci? dev ? function ?
ld* at aac? unit ?
DESCRIPTION
The aac driver provides support for the Adaptec AAC family of SCSI and SATA RAID controllers. These controllers support RAID 0, 1, 5, 10,
and volume sets. They have four channels in the add-in version or 1-2 channels in the motherboard integrated version, and are most often
found rebadged by Dell, Hewlett-Packard or IBM. Supported controllers include:
o Adaptec AAC-364
o Adaptec SCSI RAID 2120S
o Adaptec SCSI RAID 2200S
o Adaptec SATA RAID 2410SA
o Adaptec SATA RAID 3405
o Adaptec SCSI RAID 5400S
o Dell PERC 2/Si
o Dell PERC 2/QC
o Dell PERC 3/Di
o Dell PERC 3/Si
o Dell PERC 320/DC
o Dell CERC SATA RAID 1.5/6ch
o HP NetRAID 4M
o HP ML110 G2 (Adaptec SATA RAID 2610SA)
o IBM ServeRAID 8k
Access to RAID containers is available via the ld device driver. Individual drives cannot be accessed unless they are part of a container or
volume set, and non-fixed disks cannot be accessed. Containers can be configured by using the on-board BIOS utility of the card.
DIAGNOSTICS
The adapter can send status and alert messages asynchronously to the driver. These messages are printed on the system console.
SEE ALSO
intro(4), ld(4)
HISTORY
The aac driver first appeared in NetBSD 1.6, and was based on the FreeBSD driver of the same name.
BUGS
This driver is not compatible with controllers that have version 1.x firmware. The firmware version is the same as the kernel version
printed in the BIOS POST and driver attach messages.
BSD
February 19, 2011 BSD