egorgry's questions

Is there anyway to get the output of iostat -m and add only the column await from the extended output in realtime? I know this question sounds nutso but I need to be able to get all those column in realtime without outputing to a file or running iostat twice since that would give misleading results. This is centos 6.2 iostat 9.0.4. kernel 2.6.36.4. So to summarize I need this.

Device:            tps    MB_read/s    MB_wrtn/s    MB_read    MB_wrtn
sda               0.56         0.00         0.00        324        485

and I need to add await to it so it looks like this.

Device:            tps    MB_read/s    MB_wrtn/s    MB_read    MB_wrtn   await
sda               0.56         0.00         0.00        324        485   10.72

Am I dreaming? I'm I looking at this the wrong way? Do I need to compile my own iostat?

Thanks in advance.

I'm trying to crete a ramdisk of 2gb in centOS 6.2 and the error I get is the following. Any help would be greatly appreciated.

[root@ssb1 ~]# mkfs -q /dev/ram0 2147483648
 mkfs.ext2: Filesystem larger than apparent device size.
 Proceed anyway? (y,n)

grub.conf

title CentOS (2.6.36.4)
    root (hd0,0)
    kernel /vmlinuz-2.6.36.4 ro root=UUID=be58af32-27ac-45fe-8341-715df43497ac rd_NO_LUKS rd_NO_LVM rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us crashkernel=auto rhgb quiet raid=noautodetect elevator=noop ramdisk_size=2147483648

Memory info

[root@ssb1 ~]# free
             total       used       free     shared    buffers     cached
Mem:      49455672    3185524   46270148          0      18228     164792
-/+ buffers/cache:    3002504   46453168
Swap:            0          0          0

This is probably easy and something is not clicking for me and my lack of coffee right now. I have a file with multiple lines that begin with a tab then the word GROUP something {

Some of these lines for whatever reason drop the curly bracket under some conditions. The quick fix is to use sed/awk to append the curly bracket to that line but not lines where the bracket already exist. I'm halfway there with but as you can see this will append the open curly bracket to every line that begins with a tab and GROUP.

sed '/[ \t]GROUP/ s/$/ {/' scst.conf.test > greg.scst.out

Is it possible to force logrotate to use UTC time for one configuration? I need the dateext to be set to UTC. I was hoping it was as simple as setting a date varible. Should I just run postrotate and mv the files to a new file name that puts the UTC time on after the fact. I'm just looking for a best practice or the most practical solution. Thanks in advance.

My cute attempt to cheap out with a setting a variable. :)

/var/log/bricks/*.log {
DATE=`date -u +%Y%m%d`
missingok
notifempty
copytruncate
daily
dateext
dateformat .%Y%m%d
compress
}

First off we have an SR opened with Novell but I figure I'd ask here anyway. The quick scenario is this.

When the load average on one of the access gateways (LAG) spiked above 2.0 I saw some CPU wait time and the ics_dyn proc was over 50% and the java proc was over 112%.- It lasted only about 1 second. The load average dipped back down right away and the offending processes were dropped to under 10% CPU.

I went to the web console and saw the LAG was not responding. I refreshed and it went green right away.

It looks like the processes are spiking, the cpu goes over 100% and other process are now waiting for CPU time ics_dyn restarts and everything goes back to normal but the cycle starts all over again.

    grep RESTARTED ics_dyn.log
Mar 29 09:34:58 <SERVERNAME> vmcontroller: AM#404514000: AMDEVICEID#: AMAUTHID#0: AMEVENTID#0: VM-0 DOWN, being RESTARTED (Tue Mar 29 09:34:57 2011 ). restarted 60 times. fastRestartMode.
Mar 29 09:38:33 <SERVERNAME> vmcontroller: AM#404514000: AMDEVICEID#: AMAUTHID#0: AMEVENTID#0: VM-0 DOWN, being RESTARTED (Tue Mar 29 09:38:32 2011 ). restarted 61 times. fastRestartMode.
Mar 29 09:51:17 <SERVERNAME> vmcontroller: AM#404514000: AMDEVICEID#: AMAUTHID#0: AMEVENTID#0: VM-0 DOWN, being RESTARTED (Tue Mar 29 09:51:16 2011 ). restarted 62 times. fastRestartMode.

Lots of these in dmesg.

ics_dyn[11708]: segfault at 1c ip b5caf868 sp b22561d0 error 4 in libproxy.so.1[b5b8b000+1e2000]

I know there is going to be requests for more info and I'm prepared to provide it. The problem is kinda strange and I think it is a bug in the access manger software.

Version 2.7.3 (20100428_184640) Copyright (c) 1999-2009 Novell, Inc. All rights reserved.

Field Patches: Field Patch 3 -- 20100425

I've always been a block level kinda guy but I'm interested in hearing some real world experiences with file level cloning. What are some of the advantages and disadvantages as well as what tools work the best.

I'd like to know what people are using on *nix to gather output for network traffic, diagnostics, discovery. I know this is a pretty broad question but My immediate goal here is to be able to gather the reports from tools like mtr and easily output them to csv so I can present pretty spreadsheets for management. Thanks.