First a little background: I'm working with an AIX 6.1 TL05 running two mirrored SAS disks (rootvg) and four SSDs (appvg)
All four SSDs belong to appvg and are setup to mirror as follows:
hdisk4 --> hdisk6 (containing application fs)
hdisk5 --> hdisk7 (containing database fs)
A few days ago hdisk5 went kaput. In preparation for replacing that one SSD, I did the followling:
Code:
unmirrorvg appvg hdisk5
reducevg appvg hdisk5
rmdev -dl hdisk5
rmdev -dl pdisk1 (the pdisk being what hdisk5 was mapped to; I checked)
After the disk was replaced, the system found the new disk and allocated as pdisk1/hdisk5. I then did the following:
Code:
extendvg appvg hdisk5
mirrorvg appvg hdisk5
Once the mirroring was done, I was back to my original set up. The question is, was this by design or was I just lucky? Could I have ended up with:
hdisk4 --> hdisk6 --> hdisk5
hdisk7
...or is Volume Manager smart enough to notice that the lvs on hdisk7 only had one copy and should thus be mirrored to the new hdisk5?
Hello,
I am trying to do mirror in solaris 9. I have total 0-7 disks
4 5 6 7
0 1 2 3
Drive 0 and Drive 4 = Boot Drives
Need to Mirror following drives.
Drive 1 and Drive 5 = Need to mirror
Drive 1 was mounted on: /prod1, /prod2, /prod3, /prod4, /prod5.
Then i... (3 Replies)
System: Alpha with Tru64 5.1b
Disk under LSM (Logical Storage Manager; essentially v2 of Veritas VxVM) control was generating disk errors. The disk was timing out a lot and generating a few disk errors. DBAs couldn't keep the oracle instance up on that node of the cluster. I contacted HP and got... (1 Reply)
Hello friends,
I need to test some of the solaris 10 concepts and veritas volume manager.i want to know ,where i get the testing labs or E-labs(online) for this practice.i ready to pay for this labs.pls kindly help me to get the details or website names...Thanks in Advance
-Jay (6 Replies)
I am trying to build a veritas volume similar to an existing volume on another server. The output on source server is:
usbtor12# vxprint -hrtg appdg
v anvil_sqlVOL - ENABLED ACTIVE 629145600 SELECT - fsgen
pl anvil_sqlVOL-01 anvil_sqlVOL ENABLED ACTIVE 629145600... (3 Replies)
Hello there,
I'm going to describe a situation I've got here... feel free to ask away questions and I'll provide what I can if it'll help me get this answered!
When I do a vxdisk list, I see a disk that VxVM calls "disk4" that is listed as "failed was: c1t9d0s2". When I do a format, I can go... (3 Replies)
I have a machine (5.10 Generic_142900-03 sun4u sparc SUNW,Sun-Fire-V210) that we are upgrading the storage and my task is to mirror what is already on the machine to the new disk. I have the disk, it is labeled and ready but I am not sure of the next steps to mirror the existing diskgroup and... (1 Reply)
Need a procedure document to do "root disk mirroring in solaris volume manager for solaris 10". I hope some one will help me asap. I need to do it production environment.
Let me know if you need any deatils on this.
Thanks,
Rama (1 Reply)
I have a solaris 10 system configured using NetApp as its storage, and the file systems are already configured as you can see from the example below:
root@moneta # df -h
Filesystem size used avail capacity Mounted on
/dev/md/dsk/d0 9.8G 513M 9.3G 6% /
... (0 Replies)
I have a solaris 10 system configured using NetApp as its storage, and the file systems are already configured as you can see from the example below:
root@moneta # df -h
Filesystem size used avail capacity Mounted on
/dev/md/dsk/d0 9.8G 513M 9.3G 6% /... (4 Replies)
Hi Experts,
I wanted to extend a veritas file system which is running on veritas cluster and mounted on node2 system.
#hastatus -sum
-- System State Frozen
A node1 running 0
A node2 running 0
-- Group State
-- Group System Probed ... (1 Reply)
Discussion started by: Skmanojkum
1 Replies
LEARN ABOUT FREEBSD
tws
TWS(4) BSD Kernel Interfaces Manual TWS(4)NAME
tws -- 3ware 9750 SATA+SAS 6Gb/s RAID controller card driver
SYNOPSIS
To compile this driver into the kernel, place the following lines in your kernel configuration file:
device scbus
device tws
Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
tws_load="YES"
DESCRIPTION
The tws driver provides support for LSI's 3ware 9750 SATA+SAS 6Gb/s RAID controller cards.
These controllers feature the LSISAS2108 6Gb/s SAS RAID-on-Chip (ROC) and are available in 4- and 8-port configurations, supports RAID levels
0, 1, 5, 6, 10, 50 and single disk, with 96 SATA and/or SAS hard drives and SSDs.
For further hardware information, see http://www.lsi.com/.
HARDWARE
The tws driver supports the following SATA/SAS RAID controller:
o LSI's 3ware SAS 9750 series
LOADER TUNABLES
Tunables can be set at the loader(8) prompt before booting the kernel or stored in loader.conf(5).
hw.tws.cam_depth The maximum queued CAM SIM requests for one controller. The default value is 256.
hw.tws.enable_msi This tunable enables MSI support on the controller if set to a non-zero value. The default value is 0.
hw.tws.queue_depth The maximum queued requests for one controller.
hw.tws.use_32bit_sgls Limit the driver to use only 32-bit SG elements regardless whether the operating system is running in 64-bit mode.
The default value is 0.
FILES
/dev/da? array/logical disk interface
/dev/tws? management interface
DIAGNOSTICS
Whenever the driver encounters a command failure, it prints out an error code in the format: "ERROR: (<error source>: <error code>):", fol-
lowed by a text description of the error. There are other error messages and warnings that the driver prints out, depending on the kinds of
errors that it encounters. If the driver is compiled with TWS_DEBUG defined, it prints out a whole bunch of debug messages.
SEE ALSO da(4), scsi(4)AUTHORS
The tws driver was written by Manjunath Ranganathaiah for LSI and this manual page was written by Xin LI <delphij@FreeBSD.org> for iXsystems,
Inc.
BSD October 4, 2011 BSD
04-12-2012
