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Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?

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Old 09-06-2005, 10:31 AM   #1
F0ul_Olli
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Location: Flintshire, WALES, UK
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Multiple access to the same HDD


This is a work related question but I was wondering if this is possible.

We are implimenting a iSCSI SAN and would like to know if two different ISCSI initiators can access the same target drive (with Read Only permission) at the same time?

I don't think this is possible using a Windows Server, but is it possible with a Linux solution?

I know its obviously possible for two servers to access the same HDD at the same time (e.g file server) but we seem to be having a problem with working out if there are any differences while working at the block level.

thanks in advance.

F0ul Oli
 
Old 09-06-2005, 11:56 AM   #2
Matir
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Yeah, you need a filesystem specifically designed for that, or at least you do if you do any RW work. A cluster filesystem such as GFS is indicated.
 
Old 09-07-2005, 04:29 AM   #3
F0ul_Olli
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Thank you - you have helped me point people in the right direction.

Is anyone aware of a distribution which is specifically for this purpose?

ie. Has GFS and iSCSI support out of the box?

I think Redhat have produced something, but most of the links I'm finding seem to point to some big money solutions!
 
Old 09-07-2005, 11:15 AM   #4
Matir
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GFS is a RH invention. However, I know that there is a gfs-kernel (really gfs module) and gfs ebuilds in Gentoo's portage system.
 
  


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