06-21-2011
Hardware RAID Hardware is some sort of a disk controller to which you can cable up the disk drives. Software RAID is a set of one or more kernel modules coupled together with management utilities that implement RAID in software and require no additional hardware.
If you need more information, I suggest you do an Internet search on "hardware software RAID".
9 More Discussions You Might Find Interesting
1. Solaris
hai everybody n good morning........here r some queries.......
1. what is the interlace value in RAID 0 (striping.......)
2. How many no of metadevices are required for mirroring and why......... (1 Reply)
Discussion started by: sudhansu
1 Replies
2. Solaris
hi all...sudhansu here............ i need some help..........
what is RAID 0+1 and RAID 1+0.............what is the difference between them................
suppose i have 80 gb disk space,then which RAID level i follow n why......... i need redundancy n maximum storage..........please help (3 Replies)
Discussion started by: sudhansu
3 Replies
3. Solaris
Somebody can help me ! how can i do mirror in sun ver 8
without third party software !!! (3 Replies)
Discussion started by: goldfelda
3 Replies
4. UNIX for Dummies Questions & Answers
Hi
Can someone tell me what are the differences between software and hardware raid ?
thx for help. (2 Replies)
Discussion started by: presul
2 Replies
5. Solaris
Dear ALl,
I have a RAID 5 volume which is as below
d120 r 60GB c1t2d0s5 c1t3d0s5 c1t4d0s5 c1t5d0s5
d7 r 99GB c1t2d0s0 c1t3d0s0 c1t4d0s0 c1t5d0s0
d110 r 99GB c1t2d0s4 c1t3d0s4 c1t4d0s4 c1t5d0s4
d8 r 99GB c1t2d0s1 c1t3d0s1... (2 Replies)
Discussion started by: jegaraman
2 Replies
6. Solaris
Hello All,
I have read enough of texts on Raid 01 and Raid 10 on solaris :wall: . But no-where found a way to create them using SVM. Some one pls tell me how to do or Post some link if that helps.
TIA
Curious
solarister (1 Reply)
Discussion started by: Solarister
1 Replies
7. AIX
Hello,
I have a scsi pci x raid controller card on which I had created a disk array of 3 disks
when I type lspv ; I used to see 3 physical disks ( two local disks and one raid 5 disk )
suddenly the raid 5 disk array disappeared ; so the hardware engineer thought the problem was with SCSI... (0 Replies)
Discussion started by: filosophizer
0 Replies
8. Solaris
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... (4 Replies)
Discussion started by: KhawHL
4 Replies
9. Red Hat
Hello,
I want to delete a RAID configuration an old server has.
Since i haven't the chance to work with the specific raid controller in the past can you please help me how to perform the configuraiton?
I downloaded IBM ServeRAID Support CD but i wasn't able to configure the video card so i... (0 Replies)
Discussion started by: @dagio
0 Replies
LEARN ABOUT HPUX
vxr5check
vxr5check(1M) vxr5check(1M)
NAME
vxr5check - verify RAID-5 volume parity
SYNOPSIS
/etc/vx/bin/vxr5check [-i | -v] [-g diskgroup] volume
DESCRIPTION
The vxr5check utility compares the parity of each stripe of a RAID-5 volume specified by volume. vxr5check reads the data for each stripe,
generates the parity for this stripe, and compares this parity with the existing parity.
vxr5check can be run against the entire RAID-5 volume, or incrementally on RAID-5 stripe boundaries, by specifying the -i option.
OPTIONS
-g diskgroup
Specifies the Veritas Volume Manager (VxVM) disk group name for the RAID-5 volume name for verification. If this option is not
specified, the default disk group is determined using the rules given in the vxdg(1M) manual page.
-i Verifies the RAID-5 volume incrementally per stripes. If a parity mismatch is found, that stripe location is displayed.
-v Verbose output for the incremental vxr5check verification. The verbose option outputs each stripe number that is being verified.
OUTPUT FORMAT
In verbose mode and incremental mode, summary reports for each stripe of the RAID-5 volume are printed in output records. If an error is
returned for a stripe, then an error message and stripe number are displayed. In non-verbose mode, if an error is returned, an error mes-
sage is displayed.
If a parity mismatch error is determined on a stripe, vxr5check exits on that stripe and does not continue for the remaining stripes in the
RAID-5 volume.
FILES
/usr/lib/vxvm/bin/vxr5vrfy The utility that vxr5check calls to perform RAID-5 parity verification operations for the specified RAID-5
volume.
EXIT CODES
The vxr5check utility exits with a non-zero status if the attempted operation fails. A non-zero exit code is not a complete indicator of
the problems encountered, but rather denotes the first condition that prevented further execution of the utility.
See vxintro(1M) for a list of standard exit codes.
NOTES
Do not run vxr5check on a volume that is in degraded mode.
SEE ALSO
vxevac(1M), vxintro(1M), vxmend(1M), vxvol(1M)
VxVM 5.0.31.1 24 Mar 2008 vxr5check(1M)