Re: Storage mangement advice

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Author: Stephen
Date:  
To: Main PLUG discussion list
Subject: Re: Storage mangement advice
I will have to see if I left ash open. And I think I used ext3, as for
the memory available it is at a default so all 8gb.

Ill have to look at the rest.

Thank you.

On 1/25/09, Lisa Kachold <> wrote:
>
> Let's dissect this:
>
> 1) 3Ware
> Optimization is key:
>
> 2) OS?
>
> 3) Openfiler
>
> Openfiler is GREAT STUFF. Admin user is sensitive; i.e. you cannot change
> the admin user name. Also the tree permissions are picky for SMB shares and
> home folders:
>
> So for instance, if this is your tree:
>
>
>
> VG
>
>     LV

>
>           Folder1  <--- allocated as share, cannot be made homes folder

>
>           Folder2  <--- not allocated as share, can be made homes folder

>
>
> I.E. any folders allocated as shares should not be listed for allocation to
> "homes"
>
> Questions:
>
> a)  You are not using ZFS are you?
> b)  Are you using tracd?
> c)  What memory do you have allocated to openfiler?
> d)  Openfiler with USB devices and various kernel drivers has known issues
> with Volume allocation.
> Solution:  Load the volume group and logical volumes manually... fdisk -l
> shows the partition but lvm vgdisplay says "no volume groups found"
> [root@openfiler ~]# lvm vgdisplay
>  No volume groups found
> [root@openfiler ~]# lvm lvdisplay shows the same message...  So the next
> thing to do is to load the volume group manually.. [root@openfiler ~]# lvm
> vgscan
>  Reading all physical volumes.  This may take a while...
>  Found volume group "rac" using metadata type lvm2
> [root@openfiler ~]# Now that the volume group is loaded, the lvdisplay shows
> the logical volumes but they are in "NOT Available" status
>  [root@openfiler ~]# lvm lvdisplay
>    --- Logical volume ---
>    LV Name                /dev/rac/crs
>    VG Name                rac
>    LV UUID                iKo4Jn-s2sX-pVda-RD8n-JxNr-EbiA-azLPIi
>    LV Write Access        read/write
>    LV Status              NOT available
>    LV Size                50.00 GB
>    Current LE             64
>    Segments               1
>    Allocation             inherit
>    Read ahead sectors     0
>  [root@openfiler ~]# Now change the status of the volume manually
>  [root@openfiler ~]# lvm lvchange -a y /dev/rac/crs
>  [root@openfiler ~]# lvm lvdisplay
>    --- Logical volume ---
>    LV Name                /dev/rac/crs
>    VG Name                rac
>    LV UUID                iKo4Jn-s2sX-pVda-RD8n-JxNr-EbiA-azLPIi
>    LV Write Access        read/write
>    LV Status              available
>    # open                 0
>    LV Size                50.00 GB
>    Current LE             64
>    Segments               1
>    Allocation             inherit
>    Read ahead sectors     0
>    Block device           253:0
>  [root@openfiler ~]# If there are more logical volumes, manually change the
> status for each..

>
>
> Long way around, but you could write a script for this, rather than reboot?
>
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>
>
>
>
>> Date: Sat, 24 Jan 2009 22:35:48 -0700
>> Subject: Storage mangement advice
>> From:
>> To:
>>
>> I have a storage server that i am running, i gave a while with
>> openfiler and it has mostly been sucessful, but it is developing a
>> weird quirk that its really unnaceptable.
>>
>> we had created an iSCSI volume and attached it to our server and have
>> atamoving back and forth, quite happily really. but over time it has
>> developed this weird sluggisness only on the webadmin side. the iSCSI
>> performance is fine.. frist tiem we discovered this we had some
>> downtme available as we needed to reboot hte mainserver so we rebooted
>> the storage server as well. however the sluggisness is back... and
>> well this emans the openfiler is holding about 1.7TB of space hostage
>> and not letting me allocate it. and this is kind of unacceptable
>> because if i want to admin the server i should not have to reboot it
>> first.
>>
>> the configuration is a Supermicro board 3ware 8006-2 with a pair od
>> drives with the OS installed, then 6 SATA drives connected as AHCI fro
>> the data array. useing the 3ware to manage the boot partition and also
>> Os/swap seemed a logical choice for me. but now im having second
>> thoughts on useing openfiler but i am at a loss for a plan b.
>>
>> the fun part is i have had no luck finding this issue among any other
>> openfiler users at all. and im faily sure that teh system has the
>> resources avialable.
>>
>> 8gb of ram and a single harpertown 5405 i think is a little overkill
>> to have "performance issues"
>>
>> the hardware was eventually going to be repurposeable to a virtual
>> host so we werent concerned with "wast" on overkill hardware. but as
>> we are having to completely reset the network we dont want to buy a
>> whole lot of hardware that we dont have a clear use in a new home. or
>> will become "throw away" hardware that will have no eventual purpose
>> in our new facility.
>>
>> --
>> A mouse trap, placed on top of your alarm clock, will prevent you from
>> rolling over and going back to sleep after you hit the snooze button.
>>
>> Stephen
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>
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--
Sent from my mobile device

A mouse trap, placed on top of your alarm clock, will prevent you from
rolling over and going back to sleep after you hit the snooze button.

Stephen
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