07-24-2013
Thanks for the replies.
I'm waiting for our Oracle support to be renewed, so until then it's hard to get something done with the existing hardware support team unless I can specifically point out some hardware is defective. This is the only Intel X4270 we have that's connected to SAN storage, most of our SAN-connected servers are SPARC. So I'm less familiar with this Intel hardware.
The SAN switches are zoned to specific servers.
9 More Discussions You Might Find Interesting
1. Linux
Hi
I have a linux box attched to a SAN storage from EMC with RAID 5 .I understand that it has 3g cache howver a 20gb file creation takes too much time here are my results any ideas why
time dd if=/dev/zero of=disk.img bs=1048576 count=20000
20000+0 records in
20000+0 records out
997.59s... (2 Replies)
Discussion started by: xiamin
2 Replies
2. Solaris
iostat -nE returns the followings
I want to know what is happening to my StorEDGE A1000?
Can someone help me? It is a critical device. (1 Reply)
Discussion started by: nickychung
1 Replies
3. Solaris
Hi all,
We have below WARNING in /var/adm/messages file from our Solaris server.
WARNING: /sbus@1f,0/SUNW,fas@e,8800000/sd@0,0 (sd0):
Error for Command: write(10) Error Level: Fatal
Requested Block: 16745265 Error Block: 16745269
Vendor: SEAGATE Serial Number:... (8 Replies)
Discussion started by: summerboy
8 Replies
4. Solaris
Good morning to one and all :-) Thank god its Friday, as its bee na rubbish week for me !
So, a quick question. Disks ! Ive got a few local disks, and a few SAN disks used on my solaris server. Whats confusing me, and Im not sure if there's an issue at the SAN end, or my end, regarding the... (3 Replies)
Discussion started by: sbk1972
3 Replies
5. Solaris
what is the difference between softerrors,harderrors,transport errors? (3 Replies)
Discussion started by: tv.praveenkumar
3 Replies
6. Solaris
I all,
I would like to know what are the causes of :
-soft error
-harderror
-transport error
and how to avoid and repare them.
I got the iostat out put below:
atng-mm01% iostat -En | grep -i hard
c0t0d0 Soft Errors: 1 Hard Errors: 0 Transport Errors: 0
c0t0d1 ... (3 Replies)
Discussion started by: zaza
3 Replies
7. UNIX for Dummies Questions & Answers
Hello everybody,
I'm using the binary inqraid (Linux RHEL) in order to retrieve information about SAN disks. The questions are:
Given an LDEV, how do I know if the SAN disk related to this LDEV is being used by the OS? I mean, how can I demonstrate to "Storage department" that all disks of... (4 Replies)
Discussion started by: asanchez
4 Replies
8. Red Hat
Hello,
How can I identify SAN disks not in use by the OS?
Thank you. (8 Replies)
Discussion started by: asanchez
8 Replies
9. UNIX for Dummies Questions & Answers
Hi Unix experts,
I have a question regarding a disk failure seen in "iostat -Enm" output:
# iostat -Enm
c1t0d0 Soft Errors: 0 Hard Errors: 7 Transport Errors: 9
Vendor: FUJITSU Product: MAU3073NCSUN72G Revision: 0802 Serial No: 0514F005M0
Size: 73.40GB <73400057856 bytes>
Media... (5 Replies)
Discussion started by: dyavuzy1
5 Replies
LEARN ABOUT ULTRIX
iostat
iostat(1) General Commands Manual iostat(1)
Name
iostat - report I/O statistics
Syntax
iostat [ -c ] [ -t ] [ disknames ] [ interval ] [ count ]
Description
The command reports I/O statistics for terminals, disks and cpus. For terminals the number of input and output characters are counted.
For disks the number of 512 byte blocks per second and number of transfers per second are displayed. For cpus, it provides the percentage
of time the system has spent in user mode, in user mode running low priority (niced) processes, in system mode, and idling. On multipro-
cessor systems these cpu statistics represent a cumulative summary of all the cpus.
The optional disknames argument causes disk statistics to be displayed for the specified disks. If this argument is not specified then
disk statistics will be displayed for the first 3 disks only.
The optional interval argument causes to report once each interval seconds. The first report is for all time since a reboot and each sub-
sequent report is for the last interval only.
The optional count argument restricts the number of reports.
Options
-c Displays the percentage of time each cpu spent in user mode, running low priority (nice'd) processes, in system mode, and idling.
-t Displays the number of characters read from and written to terminals.
Examples
This example will cause cpu and disk statistics for the 5 disks ra0, ra1, ra2, ra3, and ra4.
iostat ra0 ra1 ra2 ra3 ra4
This example will cause cpu, terminal, and disk statistics for ra0 to be displayed and updated every 2 seconds.
iostat -t ra0 2
Files
See Also
vmstat(1), cpustat(1)
iostat(1)