Sponsored Content
Operating Systems Solaris Poor disk performance however no sign of failure Post 302587370 by rbatte1 on Wednesday 4th of January 2012 05:32:05 PM
Old 01-04-2012
Smilie Eeek! Time to be careful. Smilie

On Solaris/SunOS, the format command is the disk slicing tool mainly. You can destroy the system pretty easily with it, as I know to my cost Smilie

The analyze tests you have found shoud be okay to run and they will look for dodgy disk blocks and perhas will flush something out, but they will really hurt performance whilst you run them. I'm not sure if you have to have all the filesystems on those disks unmounted first. It's been such a long time Smilie


Just because I'm paranoid, make sure you get a good backup before you start, then read that manual pages several times to be sure. Smilie




Robin
Liverpool/Blackburn
UK
 

9 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Samba on E3500 Poor Performance!!!

Hi you all, I have a BIG performance problem on an Sun E3500, the scenario is described below: I have several users (30) accessing via samba to the E3500 using an application built on Visual Foxpro from their Windows PC , the problem is that the first guy that logs in demands 30% of the E3500... (2 Replies)
Discussion started by: alex blanco
2 Replies

2. Filesystems, Disks and Memory

Poor read performance on sun storedge a1000

Hello, i have a a1000 connected to an e6500. There's a raid 10 (12 disks) on the a1000. If i do a dd if=/dev/zero of=/mnt/1 bs=1024k count=1000 and then look at iostat it tells me there's a kw/s of 25000. But if i do a dd of=/dev/zero if=/mnt/1 bs=1024k count=1000 then i see only a... (1 Reply)
Discussion started by: mbrenner
1 Replies

3. UNIX for Dummies Questions & Answers

poor performance processing file with awk

Hello, I'm running a script on AIX to process lines in a file. I need to enclose the second column in quotation marks and write each line to a new file. I've come up with the following: #!/bin/ksh filename=$1 exec >> $filename.new cat $filename | while read LINE do echo $LINE | awk... (2 Replies)
Discussion started by: scooter53080
2 Replies

4. UNIX for Advanced & Expert Users

HW Raid poor io performance

Hello all We just built a storage cluster for our new xenserver farm. Using 3ware 9650SE raid controllers with 8 x 1TB WD sata disks in a raid 5, 256KB stripe size. While making first performance test on the local storage server using dd (which simulates the read/write access to the disk... (1 Reply)
Discussion started by: roli8200
1 Replies

5. Solaris

Poor Disk performance on ZFS

Hello, we have a machine with Solaris Express 11, 2 LSI 9211 8i SAS 2 controllers (multipath to disks), multiport backplane, 16 Seagate Cheetah 15K RPM disks. Each disk has a sequential performance of 220/230 MB/s and in fact if I do a dd if=/dev/zero of=/dev/rdsk/<diskID_1> bs=1024k... (1 Reply)
Discussion started by: golemico
1 Replies

6. AIX

Poor Performance of server

Hi, I am new registered user here in this UNIX forums. I am a new system administrator for AIX 6.1. One of our servers performs poorly every time our application (FINACLE) runs many processes/instances. (see below for topas snapshot) I use NMON or Topas to monitor the server utilization. I... (9 Replies)
Discussion started by: guzzelle
9 Replies

7. Solaris

Poor performance on an M3000

Hi We have an M3000 single physical processor and 8gb of memory running Solaris 10. This system runs two Oracle Databases one on Oracle 9i and One on Oracle 10g. As soon as the Oracle 10g database starts we see an immediate drop in system performance, for example opening an ssh session can... (6 Replies)
Discussion started by: gregsih
6 Replies

8. AIX

ISCSI poor performance 1.5MB/s fresh install AIX7.1

Hi Everyone, I have been struggling for few days with iSCSI and thought I could get some help on the forum... fresh install of AIX7.1 TL4 on Power 710, The rootvg relies on 3 SAS disks in RAID 0, 32GB Memory The lpar Profile is using all of the managed system's resources. I have connected... (11 Replies)
Discussion started by: frenchy59
11 Replies

9. Windows & DOS: Issues & Discussions

Poor Windows 10 Performance of Parallels Desktop 15 on macOS Catalina

Just a quick note for macOS users. I just installed (and removed) Parallels Desktop 15 Edition on my MacPro (2013) with 64GB memory and 12-cores, which is running the latest version of macOS Catalina as of this post. The reason for this install was to test some RIGOL test gear software which... (6 Replies)
Discussion started by: Neo
6 Replies
GNOME-DISK-IMAGE-MOU(1) 					gnome-disk-utility					   GNOME-DISK-IMAGE-MOU(1)

NAME
gnome-disk-image-mounter - Attach and mount disk images SYNOPSIS
gnome-disk-image-mounter [--writable] [URI...] DESCRIPTION
gnome-disk-image-mounter can be used to set up disk images. Both regular files and GVfs URIs (such as smb://filer/media/file.iso) can be used in the URI parameter. If no URIs are given and a window server is running, a graphical file chooser will be presented. Note that gnome-disk-image-mounter will not mount filesystems or unlock encrypted volumes in the disk image - this responsibility is left to the automounter in GNOME Shell to ensure that the same interactions happen as if the disk image was a regular physical device or disc. By default the disk images are attached read-only, use the option --writable to change this. RETURN VALUE
gnome-disk-image-mounter returns 0 on success and non-zero on failure. AUTHOR
Written by David Zeuthen <zeuthen@gmail.com> with a lot of help from many others. BUGS
Please send bug reports to either the distribution bug tracker or the upstream bug tracker at https://bugzilla.gnome.org/enter_bug.cgi?product=gnome-disk-utility. SEE ALSO
gnome-shell(1), gnome-disks(1), udisks(8), losetup(8) GNOME
March 2013 GNOME-DISK-IMAGE-MOU(1)
All times are GMT -4. The time now is 12:40 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy