Re: [zfs-discuss] ZFS not starting

2011-12-02 Thread Gareth de Vaux
On Thu 2011-12-01 (14:19), Freddie Cash wrote: > You will need to find a lot of extra RAM to stuff into that machine in > order for it to boot correctly, load the dedeupe tables into ARC, process > the intent log, and then import the pool. Thanks guys, managed to get 24GB together and it made it (

Re: [zfs-discuss] ZFS not starting

2011-12-01 Thread Hung-Sheng Tsao (Lao Tsao 老曹) Ph.D.
FYI http://www.oracle.com/technetwork/articles/servers-storage-admin/o11-113-size-zfs-dedup-1354231.html never to late:-( On 12/1/2011 5:19 PM, Freddie Cash wrote: The system has 6GB of RAM and a 10GB swap partition. I added a 30GB swap file but this hasn't helped. ZFS doesn't use sw

Re: [zfs-discuss] ZFS not starting

2011-12-01 Thread Freddie Cash
> > The system has 6GB of RAM and a 10GB swap partition. I added a 30GB > swap file but this hasn't helped. > ZFS doesn't use swap for the ARC (it's wired aka unswappable memory). And ZFS uses the ARC for dedupe support. You will need to find a lot of extra RAM to stuff into that machine in orde

Re: [zfs-discuss] ZFS not starting

2011-12-01 Thread Garrett D'Amore
You have just learned the hard way that dedup is *highly* toxic if misused. If you have a backup of your data, then you should delete the *pool*. Trying to destroy the dataset (the zfs level filesystem) will probably never succeed unless you have it located on an SSD or you have an enormous am

[zfs-discuss] ZFS not starting

2011-12-01 Thread Gareth de Vaux
Hi guys, when ZFS starts it ends up hanging the system. We have a raidz over 5 x 2TB disks with 5 ZFS filesystems. (The root filesystem is on separate disks). # uname -a FreeBSD fortinbras.XXX 8.2-STABLE FreeBSD 8.2-STABLE #0: Wed Oct 19 09:20:04 SAST 2011 r...@storage.xxx:/usr/obj/usr/src/s