Adding extra HDD to centos 4

centos · 11-16-2008, 02:00 PM

Is there any good way to expand size of available HDDs on centos 4?

We have SCSI 750GB and it is almost full. Thinking about buying external
USB 1TB. Is there any better idea?

born4linux · 11-16-2008, 11:41 PM

are you using LVM?
and why are considering an external USB attached storage?

centos · 11-18-2008, 05:44 PM

Thanks for reply. The idea about USB is actually about backup. Sorry I did not stated clearly. Actually, the only HDD are SCSI, ane LVM is running. Do you think can sync IDE HDD or SATA HDD with SCSI? I have never done it before. Using LVM should not be any problems right?

Thanks

deunan · 11-20-2008, 10:40 PM

Be careful when extending LVM onto an external USB drive. Should the drive becomes detached, you might have your machine non-bootable. Extending the LVM might be useful if you want to make use of the newly available spaces along with the existing space in a common pool. In other words, what used to be a "/" with 750GB, now will have a 1.75TB. But don't ever let the drive be detached!

Personally, I would just mount the external USB drive as a separate filesystem eg. /dev/sdd1 as /mnt/whatever