suggested filesystem?

[drewg]

Hi,

I'm a recent SageTV convert who put SageTV on his old MythTV box. Myth used to suggest using a "modern" fs like jfs which has quick delete times for large files, because the default fs (ext3) can take a large number of seconds to delete a file and would wedge the MythTV server. Can anybody tell me if SageTV has this problem? I'm building a new, lower power box to replace this one, and I'd rather avoid jfs if I can.

FWIW, I'm trying to avoid JFS because it just ate the ACC semi-final game this afternoon when we had a power glitch and the box rebooted hard. Rather than put the file in lost+found like any reasonable fs, the jfs fsck just deleted the recording. I've had MythTV loose files before, and I'm almost certain this was why.

Thanks,

Drew

[Tiki]

I can't tell you what file system is best since I'm running Windows, but the best advice I can offer is to get a UPS for your PC. It doesn't have to be an expensive one.

Where I live we get probably 10-15 minor power interruptions (less than a minute each) per year, plus frequent voltage sags or brownouts where the lights dim. My Sage PC runs 24/7 and without a UPS I'd have more problems than I care to think about. A simple 350VA UPS isn't much bigger than a power strip and it keeps my PC plus 2 cable boxes powered for several minutes (I don't keep the TV powered with it though).

[drewg]

Originally Posted by Tiki

I can't tell you what file system is best since I'm running Windows, but the best advice I can offer is to get a UPS for your PC

Yeah, it will go on a UPS once I get it moved into my office and rebuilt on less power-hungry (ie, non netburst p4) hardware. (Yay HD Extender!). But I'm mainly interested if Sage can handle the slow delete times of ext2/ext3 so I can avoid exotic filesystems that I don't understand

Drew

[rz888951]

I've used both ext3 and reiserfs. I've stuck with reiser because like you mentioned ext3 takes awhile to delete shows. The wife started to complain since I moved from a Windows box with NTFS to linux and the speed was quite noticable under ext3. Had a least one power failure while using each and never had a corruption.

[drewg]

Originally Posted by rz888951

I've used both ext3 and reiserfs. I've stuck with reiser because like you mentioned ext3 takes awhile to delete shows. The wife started to complain since I moved from a Windows box with NTFS to linux and the speed was quite noticable under ext3. Had a least one power failure while using each and never had a corruption.

Ugh. Looks like I'm stuck with something exotic then. Thanks for the info!

Drew

[cenwesi]

i use XFS and i went through this...delete is like in nano seconds... Anyway i haven't had any issues.

[svemuri]

I would go with XFS. I've played with ext2/3 and ReiserFS as well. ext2/3 is slow for deletes. Reiser's performance wasn't good with multiple streams recording and playing. I had choppy playback when recording two streams. I switched to XFS and it seems to have no problems so far. Deletes are fast and playback is better. Also keep in mind that Reiser3 is not being developed any more.
Sarat.

[jpappas]

+1 for XFS on OpenSUSE. I have had no problems. FWIW I run XFS on some production boxes at work with multi-terabyte LUN's and the only issue I have had is long FSCK on catastrophic failures. No data lost or anything, just Long, High CPU fscks. I an not sure the XFS version, but I suspect it is not new.