Michael Schäfer wrote On 03/27/06 20:24,:
>hello, > >is there any kind of workaround to get beyond the "1 million files per >terabyte"-limitation for volumes larger than 1TB? > > No. >I'm running a Helios fileserver for mac-clients which creates a small metadata >file for each file. Currently we have 1TB partitions with about 2.5 million >files, and we are running out of space. I wouldn't mind long filesystem checks >(in fact I would, but I really have no other choice), but I simply need >partitions with 2TB each. > >Why is it, that I don't have any choice to set the inode density myself? (And >see what I get for it ;-) > > because your usage pattern is not what we had in mind for MTBufs. As the target for > 1TB UFS was intended to be databases and specifically Oracle the nbpi was set at 1MByte (which at the time we considered quite low) MTBUFS was never intended to be used by most customers, only databases and other users that require a few very large files - another reason is that some 3rd party backup tools had a 2TB limit for their output files so only applications that had their own backup technology could sensibly use MTBUFS and fully protect their data. The expectation at the time was that MTBUFS would be a short term fix to a specific problem (I.e. Oracle) and that ZFS would deal with the more general case - fortunately it will allow very large numbers of files and not require an fsck equivalent so after a system crash it will come back immediately. Remember MTBUFS was *not* intended for the average user, it *was* intended for Oracle and a few other customers who wanted a few very large files, e.g. Oil industry data and possibly multi media (though they often use QFS)--- frankB _______________________________________________ ufs-discuss mailing list [email protected]
