Alan,
Its a FC SAN.
Here is multipath -v2 -ll output and looks good .
--
mpath13 (360060e8004770d00770d03e9) dm-28 HITACHI,OPEN-V*4
[size=2.0T][features=1 queue_if_no_path][hwhandler=0][rw]
\_ round-robin 0 [prio=2][active]
\_ 5:0:1:7 sdt 65:48 [active][ready]
\_ 6:0:1:7 sdu 65:64 [act
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On 12/08/2011 17:24, Paras pradhan wrote:
Does it mean that I don't need mpath0p1 ? If its the case i don't need
to run kpartx on mpath0?
You still need kpartx, but that's a bit clunky anyway. Let dm-multipath
take care of all that for you.
(The last time I used kpartx and friends was 2003.
On 12/08/2011 16:14, Paras pradhan wrote:
If the entire LUN is a PV then you don't need to partition it.
You mean don't use parted or any and directly proceed to pvcreate?
Correct.
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Removed the first few blocks and last cylinder successfully.So no GPT
signatures now.
pvcreate and vgcreate were successfully but not the lvcreate again.
*pvs o/p:*
/dev/mpath/mpath13 prd_vg10 lvm2 a- 2.00T
2.00T
*vgs o/p:*
prd_vg10 1 0 0 wz--nc2.0
On Fri, Aug 12, 2011 at 10:14 AM, Paras Pradhan wrote:
On Fri, Aug 12, 2011 at 7:39 AM, Alan Brown wrote:
Paras pradhan wrote:
Hi,
I have a 2199GB LUN assigned to my 3 node cluster. Since its >2TB, I
used
parted to create the EFI GPT parittion. After that pvcreate and vgcreate
were succes
Keith,
Yes clvm is running.
Here is what I have done.
1) LUN assigned to the cluster nodes
2) multipathd detected the LUNs in all nodes
3) used GNU parted to create EFI/GPT
4) DID: kpartx -a /dev/mapper/mpath13 , then I see mpath13p1
5) pvcreate /dev/mapper/mpath13p1
6) vgcreate -c y prd_vg10 /d
I have used multiple >2T physical volumes in my large cluster.
Do you have clvmd running and does your LVM have the cluster flag turned on?
On Fri, Aug 12, 2011 at 11:24 AM, Paras pradhan wrote:
> Does it mean that I don't need mpath0p1 ? If its the case i don't need to
> run kpartx on mpath0?
>
Does it mean that I don't need mpath0p1 ? If its the case i don't need to
run kpartx on mpath0?
And not having mpath0p1 will take away this device mapper ioctl failed issue
when creating lvcreate?
I am really confused why this lock has failed , also not sure if this is
related to this >2TB LUN.
Your physical volume can be a whole disk (mpath0) or a partition (mpath0p1). I
use the partition schema as blank disks could be accidentally used by a follow
on admin who does not fully understand the system configuration.
Keith
Sent from my iPhone
On Aug 12, 2011, at 10:14, Paras pradhan wr
On Fri, Aug 12, 2011 at 7:39 AM, Alan Brown wrote:
> Paras pradhan wrote:
>
>> Hi,
>>
>> I have a 2199GB LUN assigned to my 3 node cluster. Since its >2TB, I used
>> parted to create the EFI GPT parittion. After that pvcreate and vgcreate
>> were successfull but I get the following error when doi
Hi
I am away until 30/08/11. If you require support, please email
supp...@host365.com or call +44 (0)207 610 9911 in my absence.
Regards
Ashley
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Paras pradhan wrote:
Hi,
I have a 2199GB LUN assigned to my 3 node cluster. Since its >2TB, I used
parted to create the EFI GPT parittion. After that pvcreate and vgcreate
were successfull but I get the following error when doing lvcreate.
If the entire LUN is a PV then you don't need to part
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