|To:||George Georgalis <georgw@xxxxxxxxx>, linux-xfs@xxxxxxxxxxx|
|Subject:||Re: streaming media and realtime subvolume|
|From:||Seth Mos <knuffie@xxxxxxxxx>|
|Date:||Thu, 07 Nov 2002 16:31:42 +0100|
At 10:17 7-11-2002 -0500, George Georgalis wrote:
I do have a few questions though. I'm not sure if blade's disks used xfs-1.0 or xfs-1.1; and xfs-1.2 seems eminent (I saw some xfs-1.2preX patches). Does the filesystem remain the same through these version changes or should I think about doing a mkfs.xfs each time I upgrade the the xfs version?
No, the filesystem will not change. Only the log format has changed over time And you would only notice that using a really old kernel and a unclean shutdown.
I expect a single 7200rpm ide drive to be able to handle the stream.
I'm using raid for high availability; but uninterrupted streams is a must. What mount parameters can I use to assure uninterrupted io?
Are there other adjustments I should be thinking of? I've seen a few mentions of the Linux xfs realtime subvolume but no doc, is it ready for production? From what I can tell, it's a non journeled contiguous data block. Maybe I should just use ext2 for the media files? Would that be
Read speed is about as fast on most filesystems, at least for a IDE disk.
That is, xfs, ext2/3 and reiserfs are almost as fast reading a single large file. XFS is good with large files in particular.
higher performance? I'm not too worried about fsck, because in the case of corruption I can remake the filesystem (data partition) and renew the data from the node server.
If data corruption is not a issue and you do a lot of writing to the filesystem, it might* be faster to use a non journaling filesystem.
*Baring a number of caveats ofcourse. For most people this is negligble but not always so. It depends on too much factors.
Cheers Seth -- Seth It might just be your lucky day, if you only knew.
|<Prev in Thread]||Current Thread||[Next in Thread>|
|Previous by Date:||TAKE - check for ncurses instead of curses, hch|
|Next by Date:||Re: streaming media and realtime subvolume, Eric Sandeen|
|Previous by Thread:||streaming media and realtime subvolume, George Georgalis|
|Next by Thread:||Re: streaming media and realtime subvolume, George Georgalis|
|Indexes:||[Date] [Thread] [Top] [All Lists]|