Re: Re: Per-process I/O accounting in RHEL?

Did you take a look at: http://sourceware.org/systemtap/wiki/ScriptsTools
Regards

On Mon, Jul 7, 2008 at 4:25 PM, solarflow99 <solarflow99-Re5JQEeQqe8AvxtiuMwx3w@xxxxxxxxxxxxxxxx> wrote:

On 7/7/08, Janne Blomqvist <Janne.Blomqvist-RGpGn/YLQZM@xxxxxxxxxxxxxxxx> wrote:

Troels Arvin wrote:

Another storage related feature which I really miss:
If the size of a disk is increased (e.g. due to a logical drive size increase in the SAN), the increased capacity should be discovered by the OS (perhaps after running some "check_for_changed_block_devices" command). With RHEL 5 (and probably earlier), I haven't found a way, other than a reboot.

Try partprobe, part of the parted package. Haven't needed this myself yet, but AFAICT this is the tool that allows to grow SAN luns on the fly.

Oh, and: There shoud be a more civilized way to have RHEL re-scan the SCSI devices, instead of echoing special values into various files in the /sys file system.

I have used

http://www.garloff.de/kurt/linux/rescan-scsi-bus.sh

which puts a slightly easier interface around the "tickle files in /sys and/or /proc" thing.

 

 

the sysctl command might do a lot of these things already, and if not it probably will.

 

 

 

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