Details
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New Feature
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Resolution: Unresolved
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Major
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None
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All
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None
Description
Hello Everyone;
We have a large deployment with over 2 PB storage and we are using 8TB SAS disks in each storage pool.
I did contact Citrix support and they informed me that the current XenServer 6.5 does not support creating SR on storage with 4K block size disks
This is the SR that I have created.
--- Volume group ---
VG Name VG_XenStorage-9718b48c-46e6-6776-bd00-6e3d9af0651d
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 4
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 1
Open LV 0
Max PV 0
Cur PV 1
Act PV 1
VG Size 14.52 TB
PE Size 4.00 MB
Total PE 3807228
Alloc PE / Size 1 / 4.00 MB
Free PE / Size 3807227 / 14.52 TB
VG UUID Wp9K7p-yJtt-d5dG-hEWy-6b7o-UbKC-fG0W2U
and when I do fdisk -lu, I see all disks showing the following message
Disk /dev/sdd: 15968.6 GB, 15968688406528 bytes 255 heads, 63 sectors/track, 242676 cylinders, total 3898605568 sectors Units = sectors of 1 * 4096 = 4096 bytes Disk /dev/sdd doesn't contain a valid partition table Note: sector size is 4096 (not 512) Disk /dev/sde: 15968.6 GB, 15968688406528 bytes 255 heads, 63 sectors/track, 242676 cylinders, total 3898605568 sectors Units = sectors of 1 * 4096 = 4096 bytes Disk /dev/sde doesn't contain a valid partition table Note: sector size is 4096 (not 512)
And when I try to create a VM or add a Disk, it's failing with SR_BACKEND_FAILURE_78
Apr 20 10:14:52 AJA-XENSERVER02 vhd-util: libvhd::vhd_write: /dev/VG_XenStorage-9718b48c-46e6-6776-bd00-6e3d9af0651d/VHD-6fbbbb66-972f-4181-b436-3c56972ca55c: write of 131072 returned 0, errno: -22 Apr 20 10:14:52 AJA-XENSERVER02 vhd-util: libvhd::vhd_write_batmap: /dev/VG_XenStorage-9718b48c-46e6-6776-bd00-6e3d9af0651d/VHD-6fbbbb66-972f-4181-b436-3c56972ca55c: failed writing batmap: -22 Apr 20 10:14:52 AJA-XENSERVER02 vhd-util: libvhd::vhd_write: /dev/VG_XenStorage-9718b48c-46e6-6776-bd00-6e3d9af0651d/VHD-6fbbbb66-972f-4181-b436-3c56972ca55c: write of 4194304 returned 0, errno: -22 Apr 20 10:14:52 AJA-XENSERVER02 xapi: [ info|AJA-XENSERVER02|423625 UNIX /var/xapi/xapi|sm_exec D:962968e2309c|xapi] Session.destroy trackid=62bc67e5a3b83a413dc171b71c597926 Apr 20 10:14:52 AJA-XENSERVER02 xapi: [error|AJA-XENSERVER02|423625 UNIX /var/xapi/xapi|VDI.create R:cb2667891af2|storage_access] Re-raising as SR_BACKEND_FAILURE_78 [ ; VDI Creation failed [opterr=error 22]; ] Apr 20 10:14:52 AJA-XENSERVER02 xapi: [ info|AJA-XENSERVER02|423635 UNIX /var/xapi/xapi|session.logout D:7335e8e77475|xapi] Session.destroy trackid=bbcef362321214c76aef22f45d8b178f
I think this is very important feature that should be added to xenserver as 8TB disks are now common in the market.
Btw: VMware ESXi will be supporting it as it's on their roadmap for this year 2016!
Thanks
