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1. Help with XFS in VMs on VMFS (score: 1): Author: Jan Perci <jperci@xxxxxxxxx>; Date: Thu, 28 Mar 2013 09:21:29 -0400; Hello. I would like to use XFS in VMs with VMFS datastores on top of RAID-6. The RAID is a FC 14+2 x 4TB with 64K stripe. There are 6 of these arrays. Each contains one aligned VMFS partition, and; /archives/xfs/2013-03/msg00800.html (8,822 bytes)
2. Re: Help with XFS in VMs on VMFS (score: 1): Author: Stefan Ring <stefanrin@xxxxxxxxx>; Date: Thu, 28 Mar 2013 15:59:08 +0100; I guess you should make the number of allocation groups equal to or a multiple of the number of concatenated VMDK files (assuming they are equally sized). Any more fiddling is probably not worth the; /archives/xfs/2013-03/msg00802.html (8,638 bytes)
3. Re: Help with XFS in VMs on VMFS (score: 1): Author: Stan Hoeppner <stan@xxxxxxxxxxxxxxxxx>; Date: Thu, 28 Mar 2013 14:50:33 -0500; Since when? ESX has had LUN snapshot capability back to 3.0, 6 years or so. It may have required the VCB add on back then. Is this simply a limitation of the freebie version? If so, pony up and pay f; /archives/xfs/2013-03/msg00813.html (8,941 bytes)
4. Re: Help with XFS in VMs on VMFS (score: 1): Author: Ralf Gross <Ralf-Lists@xxxxxxxxxxxx>; Date: Thu, 28 Mar 2013 22:45:50 +0100; Stan Hoeppner schrieb: Snapshots are possible with RDM in virtual compatibily mode, not physical mode (> 2 TB). http://pubs.vmware.com/vsphere-51/topic/com.vmware.vsphere.storage.doc/GUID-0114693D-94; /archives/xfs/2013-03/msg00818.html (9,839 bytes)
5. Re: Help with XFS in VMs on VMFS (score: 1): Author: Emmanuel Florac <eflorac@xxxxxxxxxxxxxx>; Date: Thu, 28 Mar 2013 23:13:06 +0100; Le Thu, 28 Mar 2013 22:45:50 +0100 vous Ăcriviez: Maybe you could give LVM snapshot a new try. They got better recently. -- -- Emmanuel Florac | Direction technique <eflorac@xxxxxxxxxxxxxx> --; /archives/xfs/2013-03/msg00819.html (8,454 bytes)
6. Re: Help with XFS in VMs on VMFS (score: 1): Author: Stan Hoeppner <stan@xxxxxxxxxxxxxxxxx>; Date: Thu, 28 Mar 2013 19:56:12 -0500; So 2TB is the kicker here. I haven't used ESX since 3.x, and none of our RDMs back then were close to 2TB. IIRC our largest was 500GB. If you drill down through that you find this: http://www.vmware.; /archives/xfs/2013-03/msg00822.html (11,076 bytes)
7. Re: Help with XFS in VMs on VMFS (score: 1): Author: Jan Perci <jperci@xxxxxxxxx>; Date: Thu, 28 Mar 2013 23:30:01 -0400; Thank you for your responses. Since this list is for XFS, I do not wish to go off topic too far into VM's. But I will provide more context. A key factor is the need for >2TB file systems that can b; /archives/xfs/2013-03/msg00826.html (14,684 bytes)
8. Re: Help with XFS in VMs on VMFS (score: 1): Author: Ralf Gross <Ralf-Lists@xxxxxxxxxxxx>; Date: Fri, 29 Mar 2013 15:23:40 +0100; Emmanuel Florac schrieb: I need the bigger disks for win VMs ;) Ralf; /archives/xfs/2013-03/msg00830.html (8,839 bytes)
9. Re: Help with XFS in VMs on VMFS (score: 1): Author: Ben Myers <bpm@xxxxxxx>; Date: Fri, 29 Mar 2013 15:27:35 -0500; Hi Jan, At least get your stripe unit and width correct. http://xfs.org/index.php/XFS_FAQ#Q:_How_to_calculate_the_correct_sunit.2Cswidth_values_for_optimal_performance Beyond that I suggest you stick; /archives/xfs/2013-03/msg00834.html (9,299 bytes)
10. Re: Help with XFS in VMs on VMFS (score: 1): Author: Stan Hoeppner <stan@xxxxxxxxxxxxxxxxx>; Date: Sat, 30 Mar 2013 14:12:36 -0500; Is this really a good idea given that XFS sits atop a virtual disk which consists of multiple concatenated 2TB sparse files sitting on the VMFS filesystem, which, IIRC, has a 1MB sector size? Thus ca; /archives/xfs/2013-03/msg00839.html (10,853 bytes)
11. Re: Help with XFS in VMs on VMFS (score: 1): Author: Dave Chinner <david@xxxxxxxxxxxxx>; Date: Sun, 31 Mar 2013 13:04:49 +1100; No, because VMFS doesn't do any specific alignment to the underlying storage geometry. Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx; /archives/xfs/2013-03/msg00845.html (10,587 bytes)

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