12-20-2012
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
delete this (0 Replies)
Discussion started by: kharlog
0 Replies
2. Solaris
i am working in sun solaris unix platform with storage device T3+
i got an error message mirror failed
i have telneted to the storage and gave the command format
it gives disk not available ,
i have shifted my storage from node A to node B then i gave the same command format by telneting to... (0 Replies)
Discussion started by: sasiprabu
0 Replies
3. AIX
Dear Friends,
I would like to know if there is any chance to expand a Volume Group, If this VG have a mirror.
If there is any chance to do this what would be the safer way to avoid lost any data.
Sorry about my English.:D
Thanks a lot. (1 Reply)
Discussion started by: chrispaz
1 Replies
4. AIX
Hi,
I have an ssa filesystem to move to san. We don't want any downtime. I heard that you can do a mirroring of existing file system on the san. The file system is a type of either raid 0, raid 1, or raid 5.
Anyone know how to do this?
Thanks in advance,
itik (4 Replies)
Discussion started by: itik
4 Replies
5. AIX
Hello
I have a question
I have a box with Aix 5.3 with rootvg on mirror.
I deleted a filesystem and I create a new one to install some software but when I type lsvg -l rootvg all my filesystems has mirror unless the new one.
My question is I can mirror this fs only ??? or I have to... (9 Replies)
Discussion started by: lo-lp-kl
9 Replies
6. Solaris
I've looked a little but haven't found a solid answer, assuming there is one.
What's better, hardware mirroring or ZFS mirroring? Common practice for us was to use the raid controllers on the Sun x86 servers. Now we've been using ZFS mirroring since U6. Any performance difference? Any other... (3 Replies)
Discussion started by: Lespaul20
3 Replies
7. Solaris
Hi ,
I am new to SVM .when i try to learn RAID 1 , first they are creating two RAID 0 strips through
metainit d51 1 1 c0t0d0s2
metainit d52 1 1 c1t0d0s2
In the next step
metainit d50 -m d51
d50: Mirror is setup
next step is
metaattach d50 d52
d50 : submirror d52 is... (7 Replies)
Discussion started by: vr_mari
7 Replies
8. Solaris
HI Friends....
kindly explain os mirror patching?in SVM and Vxvm.
:wall: (1 Reply)
Discussion started by: Rajesh_Apple
1 Replies
9. HP-UX
what is the difference between DRD and Root Mirror Disk using LVM mirror ? (3 Replies)
Discussion started by: maxim42
3 Replies
LEARN ABOUT SUNOS
mdmonitord
mdmonitord(1M) System Administration Commands mdmonitord(1M)
NAME
mdmonitord - daemon to monitor metadevices
SYNOPSIS
/usr/sbin/mdmonitord [-t time_interval]
DESCRIPTION
The mdmonitord utility is part of Solaris Volume Manager. It monitors and checks RAID1 (mirrors), RAID5 and hot spares.
There are two methods for checking:
o At fixed time intervals.
o When a RAID-1 (mirror), RAID-5, or hot spare fails. A failure generates an error event which triggers a check of these metadevices.
OPTIONS
The following options are supported:
-t Time interval in seconds. The default value is 0, which causes probes to occur only upon an error. If you want to run
mdmonitord at a regular interval, a value of 1800 (seconds, every half hour) is recommended as a starting point.
EXIT STATUS
The following exit values are returned:
0 Successful completion.
>0 An error occurred.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWmdu |
+-----------------------------+-----------------------------+
SEE ALSO
svcs(1), metaclear(1M), metadb(1M), metadetach(1M), metahs(1M), metainit(1M), metaoffline(1M), metaonline(1M), metaparam(1M), metare-
cover(1M), metarename(1M), metareplace(1M), metaroot(1M), metaset(1M), metassist(1M), metastat(1M), metasync(1M), metattach(1M),
svcadm(1M), md.tab(4), md.cf(4), mddb.cf(4), md.tab(4), attributes(5), smf(5), md(7D)
Solaris Volume Manager Administration Guide
NOTES
Since frequent probes can affect performance, it is recommended that the intervals between probes be limited.
The mdmonitord service is managed by the service management facility, smf(5), under the service identifier:
svc:/system/mdmonitor
Administrative actions on this service, such as enabling, disabling, or requesting restart, can be performed using svcadm(1M). The ser-
vice's status can be queried using the svcs(1) command.
SunOS 5.10 25 Jul 2004 mdmonitord(1M)