Messages in this thread | | | Date | Thu, 08 Mar 2001 16:29:16 -0800 | From | Thomas Davis <> | Subject | Re: Questions about Enterprise Storage with Linux |
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Tom Sightler wrote: > > Hi All, > > I'm seeking information in regards to a large Linux implementation we are > planning. We have been evaluating many storage options and I've come up > with some questions that I have been unable to answer as far as Linux > capabilities in regards to storage. > > We are looking at storage systems that provide approximately 1TB of capacity > for now and can scale to 10+TB in the future. We will almost certainly use > a storage system that provides both fiber channel connectivity as well as > NFS connectivity. > > The questions that have been asked are as follows (assume 2.4.x kernels): > > 1. What is the largest block device that linux currently supports? i.e. > Can I create a single 1TB volume on my storage device and expect linux to > see it and be able to format it? >
Yes.
[root@pdsfdv10 data]# df . Filesystem 1k-blocks Used Available Use% Mounted on /dev/rza3 1046274600 889731608 146074448 86% /export/data
> 2. Does linux have any problems with large (500GB+) NFS exports, how about > large files over NFS? >
No. [root@pdsflx002 pdsfdv10]# df . Filesystem 1k-blocks Used Available Use% Mounted on pdsfdv10.nersc.gov:/export/data 1046274600 889731608 146074448 86% /auto/pdsfdv10
(same filesystem, via NFS)
files > 2gb need LFS support in ia32 environments.
> 3. What filesystem would be best for such large volumes? We currently use > reirserfs on our internal system, but they generally have filesystems in the > 18-30GB ranges and we're talking about potentially 10-20x that. Should we > look at JFS/XFS or others? >
ext2 works fine, you just have to wait about 3 hrs to FSCK a crashed filesystem; ext3 also works fine. Get a 2.2.18, apply the ext3 fs patches, bang, your done.
reiserfs won't work via NFS, without kernel patches.
-- ------------------------+-------------------------------------------------- Thomas Davis | ASG Cluster guy tadavis@lbl.gov | (510) 486-4524 | "80 nodes and chugging Captain!" - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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