05-01-2012
10 More Discussions You Might Find Interesting
1. AIX
Hy
I have several logical volumes that are turned into raw devices used by Informix DB. I would like to add some more.
In /dev directory i see logical volumes as block files: lv_name1, lv_name2 ...
and
i see raw devices defined as character files:
rlv_name1, rlv_name2 ...
As i see,... (5 Replies)
Discussion started by: veccinho
5 Replies
2. UNIX for Advanced & Expert Users
Hello group,
Is it possible to use partition on a disk as a raw device? I have a LUN on a SAN which I would like to partition and use those partitions as raw device.
If it is feasable, how do I bind them to a device?
For example, say sdd has 3 partitions on it, sdd1, sdd2 and sdd3. Can I... (1 Reply)
Discussion started by: bfay
1 Replies
3. Solaris
Hi All ,
I would like to know the procedure for increasing shared volume space in sun cluster .
Currently the configuration is like these .
Main stripe
oradb1/d91 2 1 /dev/did/rdsk/d35s0 1 /dev/did/rdsk/d36s0 =Total 49 Gb
oradb1/d94 -p oradb1/d91 -o 88080480 -b 14680064 ==Total 7 GB... (4 Replies)
Discussion started by: sahil_shine
4 Replies
4. Solaris
Hello, I have a problem on my backup server. I lost my system hdd and my separate ZIL device while the system crashs and now I'm in trouble. The old system was running under the least version of osol/dev (snv_134) with zfs v22.
After the server crashs I was very optimistic of solving the problems... (2 Replies)
Discussion started by: ron2105
2 Replies
5. AIX
Please consider this a question about basics&best practices. On AIX 5.3 system, three raw physical volumes are defined from storage. While doing a read with command dd from the raw device, the speed rate is 250Mb/s.
Then, it gets complex when I define these three pv's to an lv of type raw. Doing... (4 Replies)
Discussion started by: royalliege
4 Replies
6. Solaris
Hi,
I am using Sun Solaris 10 (Sparc 64 bit),
I have a meta device /dev/dsk/emcpower26a mounting on /u01. I want to make this metadeice as raw device.
Need solaris command to remove file system and make it as raw device ?.
Is there any solaris command to check raw devices ?.
Thanks (1 Reply)
Discussion started by: zeeshan047
1 Replies
7. Solaris
Hi,
I'm trying to find out how to see used space on RAW device.
I tried with prtvtoc -f RAWdevice but for 3 different device I'm getting the same FREE_SIZE which look a bit impossible.
root@zg8cscfb1> prtvtoc -f /dev/md/redodg/rdsk/d300
FREE_START=0 FREE_SIZE=20352 FREE_COUNT=1 FREE_PART=... (2 Replies)
Discussion started by: MarioT
2 Replies
8. UNIX for Dummies Questions & Answers
HI,
I want to start Oracle on UNIX machine, now the , it is failing to startup because it cannot identify a raw device. Actually machine was rebooted and now we need to mount the devices, but i just want to know the command/way to mount or rather start/init a raw device. Please let me know. (2 Replies)
Discussion started by: Onkar Banerjee
2 Replies
9. Solaris
Weird duplicate device in one of my nested raidz1s - device is shown as both online and unavailable, with a hot spare showing up as degraded as well.
Any thoughts on how I should proceed?
root@storage# zpool status tank
pool: tank
state: DEGRADED
status: One or more devices are... (6 Replies)
Discussion started by: DoohanMcGirk
6 Replies
10. Red Hat
Hi,
How to find the raw device/multipath details of the LUN used by the diskgroups of the database.
file system type -- ASM
Oracle -- 11.2.0.3.0
OS -- Linux
This is RAC database.
Regards,
Maddy (2 Replies)
Discussion started by: Maddy123
2 Replies
SG_LUNS(8) SG3_UTILS SG_LUNS(8)
NAME
sg_luns - send the SCSI REPORT LUNS command
SYNOPSIS
sg_luns [--decode] [--help] [--hex] [--maxlen=LEN] [--quiet] [--raw] [--select=SR] [--verbose] [--version] DEVICE
DESCRIPTION
Send the SCSI REPORT LUNS command to the DEVICE and outputs the response. In the SPC-3 SCSI standard support for this command is mandatory.
OPTIONS
Arguments to long options are mandatory for short options as well.
-d, --decode
decode logical unit numbers into their hierarchical parts. Interprets luns as described in SAM-3 when the HiSup bit is set in a
standard INQUIRY's response.
-h, --help
output the usage message then exit.
-H, --hex
output response to this command in ASCII hex.
-m, --maxlen=LEN
where LEN is the (maximum) response length in bytes. It is placed in the cdb's "allocation length" field. If not given (or LEN is
zero) then 65536 is used. The maximum value of LEN is 65536.
-q, --quiet
output ASCII hex rendering of each report lun, one per line.
-r, --raw
output response in binary (to stdout).
-s, --select=SR
this option sets the 'select report' field (SR) in the SCSI REPORT LUNS command. The default value is 0. When 0 is given (or this
option is not specified) then the DEVICE should yield a list of luns addressable via this "I_T nexus" that use the following lun
addressing methods: logical unit addressing, peripheral device addressing and flat space addressing. When 1 is given the DEVICE
should yield a list of only "well known" logical units addressable via this "I_T" nexus. When 2 is given the DEVICE should yield all
luns addressable via this "I_T" nexus. To simplify, for the I_T nexus associated with the DEVICE, the meanings of the SR values
are:
0 : all luns excluding well known logical units
1 : well known logical units
2 : all luns
Values greater than 2 are reserved (at SPC-4 (rev 8)).
-v, --verbose
increase the level of verbosity, (i.e. debug output).
-V, --version
print the version string and then exit.
EXIT STATUS
The exit status of sg_luns is 0 when it is successful. Otherwise see the sg3_utils(8) man page.
AUTHORS
Written by Douglas Gilbert.
REPORTING BUGS
Report bugs to <dgilbert at interlog dot com>.
COPYRIGHT
Copyright (C) 2004-2008 Douglas Gilbert
This software is distributed under a FreeBSD license. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PUR-
POSE.
SEE ALSO
sg_inq(8)
sg3_utils-1.26 April 2008 SG_LUNS(8)