Re: [Ocfs2-users] hardware needed for OCFS

[Sean Gray]

Note of caution. FWIW It is not recommended to mount OCFS2 volumes via NFS. Sean N. Gray Luis Freitas wrote: What I mean is that they have the full TCP/IP stack in them, and provide a SCSI interface to the kernel, so there is no additional CPU load using them. One could instead of using a iSCSI adapter, use a common etherned adapter and mount the iSCSI target using a software driver. The main CPU would have the additional load of disassembling the TCP/IP packets and routing them. Btw, I never actually used one of these boards. Regards, Luis --- On Fri, 12/19/08, David Coulson <da...@davidcoulson.net> wrote: From: David Coulson <da...@davidcoulson.net> Subject: Re: [Ocfs2-users] hardware needed for OCFS To: lfreita...@yahoo.com Cc: ocfs2-users@oss.oracle.com Date: Friday, December 19, 2008, 10:26 AM Typically I find folks use 'NAS" to refer to filesystem level sharing (NFS, Samba), and SAN for block level (FC, iSCSI). There are plenty of iSCSI HBAs (I've only used the ones from qlogic), however they don't 'simulate' anything - They're just a SCSI adapter with an iSCSI backend. Luis Freitas wrote: If your NAS can do iSCSI you could use it to provide a shared block device. The performance wont be as good as a SAN as the data has to go through the kernel TCP/IP stack, it can be comparable if you have a iSCSI IP accelerator board that simulates a hba. Regards, Luis --- On Fri, 12/19/08, David Coulson <da...@davidcoulson.net> wrote: From: David Coulson <da...@davidcoulson.net> Subject: Re: [Ocfs2-users] hardware needed for OCFS To: "Pete Kay" <pete...@gmail.com> Cc: ocfs2-users@oss.oracle.com Date: Friday, December 19, 2008, 9:57 AM OCFS2 requires a block device (local disk, direct attached, SAN), so it's not going to work with a NAS (Samba, NFS, etc) mount. You can, of course, share a OCFS2 filesystem using Samba or NFS. Pete Kay wrote: Hi, Does OCFS require NAS hardware to run or does normal PC hard disk work? Thanks, Pete ------------------------------------------------------------------------ _______________________________________________ Ocfs2-users mailing list Ocfs2-users@oss.oracle.com http://oss.oracle.com/mailman/listinfo/ocfs2-users _______________________________________________ Ocfs2-users mailing list Ocfs2-users@oss.oracle.com http://oss.oracle.com/mailman/listinfo/ocfs2-users _______________________________________________ Ocfs2-users mailing list Ocfs2-users@oss.oracle.com http://oss.oracle.com/mailman/listinfo/ocfs2-users _______________________________________________ Ocfs2-users mailing list Ocfs2-users@oss.oracle.com http://oss.oracle.com/mailman/listinfo/ocfs2-users

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