Re: zfs not detecting drive failure
Thanks it was of great help.
On 9/2/13, Florian Ernst <florian_ernst@gmx.net> wrote:
> Hello there,
>
> On Mon, Sep 02, 2013 at 07:21:10PM +0500, Muhammad Yousuf Khan wrote:
>> but there is a problem when i restart the machine folder on the root
>> (name
>> as pool name) of file system can b found however zfs partition is not
>> mounted.
>> i have to run "zfs mount -a" to remount the partition. what can be done
>> to
>> mount the zfs partition on boot.
>> i know running this command /etc/rc.local would probably work but do you
>> guys think is it a work around or proper way to mount the zfs on boot.
>
> Take a look at /etc/default/zfs and, for clarification, at
> /etc/init.d/zfs-*. However, this way zfs datasets will be mounted rather
> late during boot. That is fine for mere data storage, but won't suffice
> for storing e.g. /var. For that you could enter something along
> "$local_fs +zvol +zfs" to a new file /etc/insserv.conf.d/zfs.conf,
> followed by an "insserv" call.
>
> Hmm, you mentioned you were testing on Ubuntu. Methinks there was a
> zfs-mountall package available that might ease the task, but I'm not
> sure about its availability ...
>
>> one more issue that i have found. i had smaller files 2 GB each. which i
>> replace by 4GB files so that i could test if i need to increase the size
>> of
>> storage at some time later. eventually all the files has been replace
>> with
>> new one successfully however when i pass the command "df -h" it showed me
>> the old partition size.
>> how can i re claim the remaining empty partition.
>
> "zpool online -e pool device...", and furthermore you can set the
> autoexpand property. See "man zpool" for details.
>
> BTW, I found the "ZFS on Linux User Guide" as linked from
> http://zfsonlinux.org/docs.html quite helpful, you might want to check
> it out. I'm running ZFS in production use on Squeeze and Wheezy, and it
> greatly helped me to get some things sorted.
>
> HTH,
> Flo
>
>
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