Thank you,
I will consider that as a way forward.
Best posts made by frank-s
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RE: Mirror backup with Continuous Replication
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RE: Introduce yourself!
I started with XCP 1.0 a few years ago then 1.1 and 1.6 'till xenserver 6.2 became open source. Been with xenserver ever since. I run a small (one man band) company providing IT and sysadmin support to fourteen small to medium sized companies. All are virtualized on various versions of xenserver. All are using standalone servers. Some more recent ones use bcache local storage with redundant mdadm array as backing device and ssd as caching device. /dev/bcache0 then becomes local repository so all vms in repo benefit from ssd caching. Citrix pissed me off with the release of xs7.3 so I am really pleased to find this fork. Having started with XCP 1.0 it feels like coming home.
I came into IT nearly 20 years ago having spent the previous 30 years in electronic engineering. I am self taught. I have to say I found electronics easier... -
RE: An updated installer for XCP-ng 7.5.0
@dvdhngs
Run lvscan to see if there are any active logical volumes. If there are runvgchange <group name> -an
to deactivate all logical volumes. Now try to stop the array. -
RE: An updated installer for XCP-ng 7.5.0
@frank-s Hello again. My issue is resolved. I was using used disks which had previously been used with mdadm. Although I applied "mdadm --zero-superblock" to every partition and the device itself before deleting the partition tables and dd zeroed the first 50 Gigs of the drives, the installer didn't like it. Maybe I should also have zeroed the end of the drive??? Anyway I zeroed out the entire drive (both of them) with dd and the installer worked like a charm. I also tested upgrade which also worked flawlessly.
Thank you for the great work you are doing. Over the years I have spent many many hours loading xenserver with bootable raid. This is going to make life so much easier... -
RE: Install Plugins XO from sources
@Danp Thanks for pointing me in the right direction. I was following an older howto where --global was not specified. That was my first problem - now fixed!
Second problem was that I had installed into the root directory of Centos7 so the paths for creating the links were different. Once I had found the correct paths and created the links all was good.
Thanks again.
Frank.
Latest posts made by frank-s
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RE: s3 remote download speeds
@florent Hi, Have you been able to make any progress with this?
Thanks. -
RE: Custom email
Thanks for your replies. Since the advent of mirror backups I realised there was an opportunity to backup to several different USB disks where each disk is a different remote allowing rotation of the disks. The primary backup goes to additional internal storage which is then mirrored to the USB disks. Only one snapshot per vm is needed regardless of how many USB disks are in use. To do this I need to script the mounting process for these disks and send notification emails when a disk is mounted, unmounted (safe to unplug) or when no disk could be found.
This is my use case.
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Custom email
Is there a simple way to send a custom email from the xo command line eg xo-cli?
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RE: s3 remote download speeds
@florent Thank you so much for looking into this. The ability to saturate the download link will make a big difference - especially for on premises servers.
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RE: s3 remote download speeds
@florent Thank you. I am a mere user - you devs are light years in front of me so I wouldn't know what to do with smapiv3...
I guessed I could probably download an entire folder from s3 using third party tools with parallel processing and then make a local remote from that to restore vms but this would be a 2 stage process. I can't help but feel that there is a more elegant solution. -
RE: s3 remote download speeds
@florent said in s3 remote download speeds:
We made the choice to optimize backup instead of restore, since there is more backups than restores.
I see. I understand that there would be more backups than restores - in an ideal world there would be no restores
Yet in the real world when a full restore is needed it is likely to be needed desperately. In this case I would probably prioritise restore over backup - especially where deltas are used as these would be smaller anyway... -
s3 remote download speeds
So I continue to test s3 remote. I have noticed that when I upload a backup it is able to completely saturate my upload bandwidth (40Mbps), however when I download (restore) I am lucky to get 20Mbps. I wondered if Wasabi was throttling my downloads so I installed Wasabi explorer on a windows box and tried downloading a large folder. Immediately it was much faster. Then I found the option for increasing the threads and I was able to saturate my download bandwidth (350Mbps). Can I ask how many threads the s3 remote uses when downloading and is there a way to tweak its performance?
Thanks. -
RE: S3 remote cannot set up with encryption
@florent I've been away for a few days so sorry for not replying sooner. Thank you all for your advice. I have still been unable to set up encryption on an s3 remote. I even tried a different provider (iDrive e2) but got the same error. I did manage to do it with backblaze b2 but the download speed for restore was too slow. I take onboard planedrop's point about https encrypting data in flight so if I proceed in production I will use the encryption tools provided by the s3 provider and ensure I always use https. Having said that I will probably wait till the s3 remote is no longer in beta.
Once again thanks everyone. -
RE: S3 remote cannot set up with encryption
Thank you. So what is the procedure? Do I have to initially back up to the unencrypted remote and then apply the encryption key?