scan hot plug drives support !!

vinay_r99 · 02-17-2003, 03:17 AM

hi all,

I have a Compaq DL380 server which has an hotplug hard drives support & pci hotplug tooo.... it can inhouse some six hard disk in it..... i have installed Redhat Linux 8.0 with two drives in it.... & its an production server. Now i want to add three more hard drives in it.... is there a tool to scan the three hard drives which i hv installed in it. onces i scan i should be able to see the three drives which is installed without reboot. with some command or with GUI screen. any somebody help me ....

Thanx a lot.

Vinay R

SCerovec · 11-30-2006, 04:34 AM

Try to rebuild your (2.6 series) kernel with following enabled:

Support fir pci hotplug
support for scanning multiple LUNs on each scsi device.

reply how did this went?

LaughingBoy · 07-05-2008, 08:19 AM

Quote:

Originally Posted by SCerovec

Try to rebuild your (2.6 series) kernel with following enabled:

Support fir pci hotplug
support for scanning multiple LUNs on each scsi device.

reply how did this went?

How does one check to see if their kernel already supports this? I'm using Fedora 7, 8, and 9.

SCerovec · 07-07-2008, 01:17 PM

Quote:

Originally Posted by LaughingBoy

How does one check to see if their kernel already supports this? I'm using Fedora 7, 8, and 9.

there are quite a few ways ;-)

[NOTE]before doing any of this you should become root, by using the command su in a terminal (or konsole).[/NOTE]

1. /proc/config.gz
this is the file that if copied:

Code:

cp /proc/config.gz/ <your kernel souces dir>/.config && make oldconfig

can build a kernel configuration that is exact as Your running kernel-image's one.

In that file _is_ the clue - either analyze it or after oldconfig examine the config in the

Code:

make menuconfig

or

Code:

make xconfig

in said source directory

but before making even a slightest step make sure 100% to have the exact same source as the running kernel image.

Trust me - fedora, Mandriva, SuSE and co. make quite a few kernel releases every now and then - and most of headache come from not taking extreme care for the exact same versions.

BTW - I learned the hard way - if something is not enabled by default in Mandriva's kernel - it's because it failed to build ;-) - i guess it applies to the others shipping patched kernels too.

This is so because they sport a highly patched kernel and tend to enable as much as possible by default.

report progress (I'll try to help as much as i can)

SCerovec · 07-07-2008, 01:25 PM

I've just read the opening post,
The tool might be

fdisk

or

hdparm

?
I managed once to swap a optical device (DVD burner) en vivo (!) and brought it to live with k3b (a desktop machine)

I also have a headless (well almost - it has no monitor but has a VGA card) server running X and i can remote-login to it with

Code:

ssh -Y user@foo.lan

and run k3b on said machine
???

LaughingBoy · 07-08-2008, 12:10 AM

Quote:

Originally Posted by SCerovec

there are quite a few ways ;-)

[NOTE]before doing any of this you should become root, by using the command su in a terminal (or konsole).[/NOTE]

1. /proc/config.gz
this is the file that if copied:

Code:

cp /proc/config.gz/ <your kernel souces dir>/.config && make oldconfig

can build a kernel configuration that is exact as Your running kernel-image's one.

Code:

[root@localhost ~]# find /proc/ -iname *config*
[root@localhost ~]# ls /proc/con*
ls: cannot access /proc/con*: No such file or directory
[root@localhost ~]# locate config.gz

Nothing found...

Quote:

Originally Posted by SCerovec

In that file _is_ the clue - either analyze it or after oldconfig examine the config in the

Code:

make menuconfig

or

Code:

make xconfig

in said source directory

but before making even a slightest step make sure 100% to have the exact same source as the running kernel image.

Trust me - fedora, Mandriva, SuSE and co. make quite a few kernel releases every now and then - and most of headache come from not taking extreme care for the exact same versions.

BTW - I learned the hard way - if something is not enabled by default in Mandriva's kernel - it's because it failed to build ;-) - i guess it applies to the others shipping patched kernels too.

This is so because they sport a highly patched kernel and tend to enable as much as possible by default.

report progress (I'll try to help as much as i can)

Cheers.
This system I'm on at the moment is an MSI K9N SLI Platinum. I believe this has an NForce 570 to handle the SATA ports.

Is there a particular module I can check for to see if hot swap is supported?