Linux on SAN


 
Thread Tools Search this Thread
Operating Systems Linux Linux on SAN
# 8  
Old 05-29-2008
Then I am sorry if It cannot help you. I am not 100% certain, but I believe that rescan script will probe the device again and report the new size.

However, is it not possible to allocate new LUNs and then concat the devices together to new logical volumes, then expand the file system?
# 9  
Old 06-02-2008
Quote:
Originally Posted by mark54g
Then I am sorry if It cannot help you. I am not 100% certain, but I believe that rescan script will probe the device again and report the new size.

However, is it not possible to allocate new LUNs and then concat the devices together to new logical volumes, then expand the file system?
I tried running the script again to see if it reports the new size... unfortunately.. it didnt Smilie.

Yes it is possible to create new LUNs and vgextend the existing VG, without rebooting. But the risk is that we might end up with 128 LUNs and the SAN I/O will definitely suffer, or maybe im wrong?
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Filesystems, Disks and Memory

Faster way: SAN hd to SAN hd copying

hi! i got a rhel 6.3 host that already have an xfs filesystem mounted from a SAN (let's call it SAN-1) whose size is 9TB. i will be receiving another SAN (let's call it SAN-2) storage of 15TB size. this new addition is physically on another SAN storage. SAN-1 is on a Pillar storage while the new... (6 Replies)
Discussion started by: rino19ny
6 Replies

2. AIX

SAN Migration

Hi all, We are migrating our SAN storage from HSV360 to 3PAR. The system runs aix 6.1 version with HACMP. Please let me know what are requirements from OS side and how are the data copied to the new disks. (10 Replies)
Discussion started by: ElizabethPJ
10 Replies

3. Linux

How to Find out if an HP/Linux uses SAN or not?

Is there a command I can run on my HP /LINUX to see if uses SAN? This command work son AIX ls -al /DEV/rdsk however it does not work on HP Linux. Please let me know? Thanks (4 Replies)
Discussion started by: mrn6430
4 Replies

4. AIX

IBM SAN TO SAN Mirroring

Has anyone tried SAN to SAN mirroring on IBM DS SAN Storage. DS5020 mentions Enhanced Remote Mirror to multi-LUN applications I wonder if Oracle High availibility can be setup using Remote Mirror option of SAN ? (1 Reply)
Discussion started by: filosophizer
1 Replies

5. Filesystems, Disks and Memory

how to create same paritations from same SAN disk on two linux servers

Hi All, Storage team assigned same SAN disk on two servers how to create same paritations from same SAN disk on two linux servers may i know options & procedure. But here one server writing on SAN disk and another server reading other files from SAN disks Thanks in advance (1 Reply)
Discussion started by: kurva
1 Replies

6. Filesystems, Disks and Memory

Finding SAN Lun's on Linux.

Am trying to differentiate between the local disks and LUN's presented from SAN onto the server. Have Tried fdisk -l, however I quite cudn't differentiate the local disks from SAN presented LUN's. Can you pls. let me know the procedure and commands to find this. OS - RHEL 4 SAN - EMC... (3 Replies)
Discussion started by: Crazy_murli
3 Replies

7. Filesystems, Disks and Memory

Multiple Paths to SAN with LVM in Linux?

I'm setting up a CentOS 5 server that will be connected to an HP EVA4000. My previous experience is with an HP VA7400 and HP-UX. In HP-UX I can add "alternate paths" to a volume group in order to have redundant paths to the SAN via dual fiber channel HBAs just by either adding them with... (3 Replies)
Discussion started by: deckard
3 Replies

8. Solaris

Thoughts/experiences of SAN attaching V880 to EMC SAN

Hi everyone, I wonder if I can canvas any opinions or thoughts (good or bad) on SAN attaching a SUN V880/490 to an EMC Clarion SAN? At the moment the 880 is using 12 internal FC-AL disks as a db server and seems to be doing a pretty good job. It is not I/O, CPU or Memory constrained and the... (2 Replies)
Discussion started by: si_linux
2 Replies

9. AIX

San:

hi We have 2 AIX nodes running with HACMP and all of them connected to SAN, Our shared storage is shark; I need to create shared volume group and I need the HACMP take a ware of it. Regards (1 Reply)
Discussion started by: h2aix
1 Replies

10. UNIX for Dummies Questions & Answers

what is SAN

Hello all, I have looked at the entire posting that have SAN in it and I'm still fuzzy on how SAN works. I understand that every disk array can be access from any server that needs it, but is there software that is install or NFS mount type situation. One post stated that if your format command... (7 Replies)
Discussion started by: larry
7 Replies
Login or Register to Ask a Question