PERC H730P Mini - Multiple LV's
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@travisdh1
This thread. -
@Dashrender said in PERC H730P Mini - Multiple LV's:
@travisdh1
This thread.Yeah, looks like a good procedure.
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ext2 and ext3 don't know anything over the existence of 2TB, but you can use type lvm to do this locally(looks like you have done this). If XS doesn't have support for ext4 natively I don't think you can use ext4 file systems for anything in XS.
ext4 would work if you can mount it as an ext type SR in XS, but you probably cant, and will have to use lvm type locally for large SR
If you want thin provisioning on large shared SRs, use NFS instead of iscsi.This was all in that Xenserver book I just got and read through.
There is also The Tobias reply to this topic
http://discussions.citrix.com/topic/373709-adding-storage-to-xenserver/This Xenserver 7 blog that states why ext4 support is missing in XS 7 (although it is coming in the future)
https://www.citrix.com/blogs/2016/06/30/xenserver-7-building-the-foundations-of-a-great-future/You may be wondering why the move to CentOS 7 didn’t automatically mean that XenServer 7 acquired various features and mechanisms that CentOS 7 happens to have, such as SELinux or the XFS filesystem. This is because the domain 0 Linux platform is a component of the XenServer system (rather than XenServer being an application that runs on top of Linux) and is therefore tightly integrated into the overall system – when we upgrade components of the system our first priority is to ensure a like-for-like upgrade which preserves the integrity, functionality, quality, performance and security of the system. If the new component comes with new mechanisms that didn’t exist in the older version, we carefully consider if and how we can integrate those new mechanisms into the XenServer system (for example moving from ext3 to XFS would require careful consideration for XenServer upgrade and rollback use-cases and therefore isn’t a transparent change) – these additional integrations may come in later releases than the underlying component upgrade.
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@BRRABill I believe it's the XenServer Practical Guides and Tips book . . .
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@BRRABill
• XenServer Administration Handbook: Practical Recipes for Successful Deployments -
Ha. . . . .
So everyone get ready for a kicker.
Did a 6.5 install to a 16GB usb with the same OBR10 array (15TB) and selected it as the default SR during installation.
And I now have a Local SR of 15TB on an XS6.5 installation, with no additional configuration....
Um WTF did we all do wrong before?
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@DustinB3403
You were trying to use ext type for thin provisioning rather than the default for large SR of type lvm -
@momurda said in PERC H730P Mini - Multiple LV's:
@DustinB3403
You were trying to use ext type for thin provisioning rather than the default for large SR of type lvmYou'd think, but I went through this not to long ago, and I specifically didn't choose thin provisioning to test and had to add the SR manually.
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Yes I remember, but it did work as type lvm eventually. Not sure why it didn't on install, ive not had a problem with it yet myself.
Also, is there a 'Guided using entire disk with lvm' option in XS installer?(I cant remember) perhaps that option is where the magic happens. Without it maybe you have to add the large SR manually. -
@momurda said in PERC H730P Mini - Multiple LV's:
ext2 and ext3 don't know anything over the existence of 2TB, but you can use type lvm to do this locally(looks like you have done this). If XS doesn't have support for ext4 natively I don't think you can use ext4 file systems for anything in XS.
ext4 would work if you can mount it as an ext type SR in XS, but you probably cant, and will have to use lvm type locally for large SR
If you want thin provisioning on large shared SRs, use NFS instead of iscsi.This was all in that Xenserver book I just got and read through.
There is also The Tobias reply to this topic
http://discussions.citrix.com/topic/373709-adding-storage-to-xenserver/This Xenserver 7 blog that states why ext4 support is missing in XS 7 (although it is coming in the future)
https://www.citrix.com/blogs/2016/06/30/xenserver-7-building-the-foundations-of-a-great-future/You may be wondering why the move to CentOS 7 didn’t automatically mean that XenServer 7 acquired various features and mechanisms that CentOS 7 happens to have, such as SELinux or the XFS filesystem. This is because the domain 0 Linux platform is a component of the XenServer system (rather than XenServer being an application that runs on top of Linux) and is therefore tightly integrated into the overall system – when we upgrade components of the system our first priority is to ensure a like-for-like upgrade which preserves the integrity, functionality, quality, performance and security of the system. If the new component comes with new mechanisms that didn’t exist in the older version, we carefully consider if and how we can integrate those new mechanisms into the XenServer system (for example moving from ext3 to XFS would require careful consideration for XenServer upgrade and rollback use-cases and therefore isn’t a transparent change) – these additional integrations may come in later releases than the underlying component upgrade.
That's ridiculous. Id much rather have SELinux, XFS, and other advancements over backwards/forward compatibility. Give people real V2V tools and with that and xva's backwards/forward compatibility won't matter.
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Hey, I'm just italicizing what XS blog guy said.
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@momurda said in PERC H730P Mini - Multiple LV's:
Hey, I'm just italicizing what XS blog guy said.
I know. Sorry on my phone and didn't feel like trying to quote just his quote.
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What are XVAs?
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Xen Virtual Appliance file. I think it is just a container for ovf types.
edit: it is a container for ova types, which are containers for ovf types. -
@Dashrender said in PERC H730P Mini - Multiple LV's:
What are XVAs?
Its the format that XenServer exports snapshots to. Some compressed format that has to be stitched back together to get a usable disk out of it. So the only way to export from XenServer to something else is to uncompress the file and untar it. Then stitch all of the files back together.
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I thought you were the Xen god?
I heard you knock on doors to spread the gospel. -
@Texkonc said in PERC H730P Mini - Multiple LV's:
I thought you were the Xen god?
I heard you knock on doors to spread the gospel.Me or Dash?
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Dustin
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