Re: zpool scrub tank && high file system activity caused crash



On Mon, Mar 24, 2008 at 04:23:19PM -0700, Bert JW Regeer wrote:
I am running FreeBSD 7.0-RELEASE with GENERIC on a AMD XP Athlon 3500+ with
1267 MB of ram, and a GigBit NIC. I am testing out ZFS just for the hell of
it, I know, 32 bit is not suggested and runs badly, but it does what it
needs to do.

I was copying large amounts of data for backup purposes from my MacBook Pro
to the machine over FTP. At the time I was looking around the man page for
zpool, and figured I'd run a zpool scrub just to see how badly it affects
performance. It affects it in that it takes down the machine with a dump.

There's been many previous statements from others that heavy I/O on ZFS
results in either a crash or a hard hang, on both i386 and amd64.
You're not alone.

--
| Jeremy Chadwick jdc at parodius.com |
| Parodius Networking http://www.parodius.com/ |
| UNIX Systems Administrator Mountain View, CA, USA |
| Making life hard for others since 1977. PGP: 4BD6C0CB |

_______________________________________________
freebsd-hackers@xxxxxxxxxxx mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-hackers
To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@xxxxxxxxxxx"



Relevant Pages

  • (no subject)
    ... Barracuda SATAs into a 3.2GHz Northwood P4 with 1GB of RAM, ... wondering which would be the most stable filesystem to use. ... I'm aware of the tuning requirements that ZFS ... What is limited is MBR partitioning used by fdisk. ...
    (freebsd-questions)
  • Re: zpool scrub tank && high file system activity caused crash
    ... I am running FreeBSD 7.0-RELEASE with GENERIC on a AMD XP Athlon 3500+ with ... I changed the size the kernel was allowed to be to at least 512 M as that is recommended, and I got the same panic as the first email I sent out, I also ran out of space on /var so it did not save the vmcore:(. ... I am going to wait till I get my 64 bit system up and running before messing with ZFS again. ... I don't think the amount of ram I have in that machine would be enough with some of the other stuff it will have to do as well, if I let the kernel eat up to a GB. ...
    (freebsd-hackers)
  • Re: Building a low-power FreeBSD media server
    ... planning on using FreeBSD and ZFS to accomplish this. ... it to be as low power as possible. ... PCI expansion slot which will allow me to add 4 more SATA ports. ... for about $350 plus the cost of a case, power supply, HDDs, and RAM, I ...
    (comp.unix.bsd.freebsd.misc)
  • Re: UFS2 or ZFS for 3TB disk?
    ... Barracuda SATAs into a 3.2GHz Northwood P4 with 1GB of RAM, ... I'm aware of the tuning requirements that ZFS ... What you need to keep in mind is that you need to tune things to get ZFS ... This machine has 2GB of RAM, and runs amd64. ...
    (freebsd-questions)
  • Re: I broke ZFS! Ha!
    ... Sun are already running ZFS in production for that stuff? ... These same business realities mean old hardware ... I'll repeat the process on a machine with at least 4Gb of RAM and see ...
    (comp.unix.solaris)