1:45 a.m.
Hi list,
Building a new kit for a client, 3x servers each with a 5 disk RAID 5
10k SPIN and a 3 drive RAID 5 SSD
I am thinking of doing a straight replica 3 GlusterFS, 1 for spin and 1
for SSD so
a) all servers have technically local access to disks
b) any server can die without much impact beyond awaiting migrate
Is just a replica 3 best option for space + performance in a VM
environment?
Is there any specific tricks or traps I should look out for building
such an environment? Any recommendations on why this is a good OR BAD
idea?
Thanks,
Joe
7:40 a.m.
if you go with RAID 5 option it is expected to have performance degradation but you will
have double protection for your data.
my suggestion, go with each HDD disks as individual bricks with replica 3 volumes and same
for SSD's
8:47 a.m.
Sorry to be clearer
There is 15 Spin disks total
9 SSD disks total
Spin will be split into 3x RAID-5's on the physical hosts (5 disks)
SSD will be split into 3x RAID-5's on the physical hosts (3 disks)
My plan was as you said, create a single brick on each of the 3 spin
RAID-5's and a single brick on each of the 3 SSD RAID-5's - just wasn't
sure if there was a better way to go about it.
Thanks,
Joe
------ Original Message ------
From: "dhanaraj.ramesh--- via Users" <users(a)ovirt.org>
To: users(a)ovirt.org
Sent: 2/12/2021 5:40:47 PM
Subject: [ovirt-users] Re: oVirt 3 Node with GlusterFS
if you go with RAID 5 option it is expected to have performance
degradation but you will have double protection for your data.
my suggestion, go with each HDD disks as individual bricks with replica 3 volumes and same
for SSD's
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7:30 p.m.
For SSDs , I would use each ssd as a single brick.
Don't forget to align the LVM/XFS in case you are not using Gluster's Ansible
/which oVirt also uses for deployment/
: https://access.redhat.com/documentation/en-us/red_hat_gluster_storage/3.5/html/administration_guide/brick_configuration
Best Regards,Strahil Nikolov
On Thu, Dec 2, 2021 at 9:48, Joseph Goldman<joseph(a)goldman.id.au> wrote: Sorry
to be clearer
There is 15 Spin disks total
9 SSD disks total
Spin will be split into 3x RAID-5's on the physical hosts (5 disks)
SSD will be split into 3x RAID-5's on the physical hosts (3 disks)
My plan was as you said, create a single brick on each of the 3 spin
RAID-5's and a single brick on each of the 3 SSD RAID-5's - just wasn't
sure if there was a better way to go about it.
Thanks,
Joe
------ Original Message ------
From: "dhanaraj.ramesh--- via Users" <users(a)ovirt.org>
To: users(a)ovirt.org
Sent: 2/12/2021 5:40:47 PM
Subject: [ovirt-users] Re: oVirt 3 Node with GlusterFS
if you go with RAID 5 option it is expected to have performance
degradation but you will have double protection for your data.
my suggestion, go with each HDD disks as individual bricks with replica 3 volumes and same
for SSD's
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10:40 p.m.
Moin,
We use in our Enviroment three ssd drives with four TB space in a Raid
5 on a adaptec contrioller and use on the ovirt installation the jbod
on the drive which the Adaptec Controller provide. If we have three
Servers in place we use the same config but each volume will be
replicate to the other servers.
Next year we plan to use a Raid 10 with four drives and the rest will
be the same.
I think the speed will not be the best one but für the data we have
enough redundancy im place.
brMarcel
Am Donnerstag, dem 02.12.2021 um 18:30 +0000 schrieb Strahil Nikolov
via Users:
For SSDs , I would use each ssd as a single brick.
Don't forget to align the LVM/XFS in case you are not using Gluster's
Ansible /which oVirt also uses for deployment/ :
https://access.redhat.com/documentation/en-us/red_hat_gluster_storage/3.5...
Best Regards,
Strahil Nikolov
> On Thu, Dec 2, 2021 at 9:48, Joseph Goldman<joseph(a)goldman.id.au>
> wrote: Sorry to be clearer
>
> There is 15 Spin disks total
>
> 9 SSD disks total
>
> Spin will be split into 3x RAID-5's on the physical hosts (5 disks)
> SSD will be split into 3x RAID-5's on the physical hosts (3 disks)
>
> My plan was as you said, create a single brick on each of the 3
> spin
> RAID-5's and a single brick on each of the 3 SSD RAID-5's - just
> wasn't
> sure if there was a better way to go about it.
>
> Thanks,
> Joe
>
> ------ Original Message ------
> From: "dhanaraj.ramesh--- via Users" <users(a)ovirt.org>
> To: users(a)ovirt.org
> Sent: 2/12/2021 5:40:47 PM
> Subject: [ovirt-users] Re: oVirt 3 Node with GlusterFS
>
> >if you go with RAID 5 option it is expected to have performance
> degradation but you will have double protection for your data.
> >
> >my suggestion, go with each HDD disks as individual bricks with
> replica 3 volumes and same for SSD's
> >_______________________________________________
> >Users mailing list -- users(a)ovirt.org
> >To unsubscribe send an email to users-leave(a)ovirt.org
> >Privacy Statement: https://www.ovirt.org/privacy-policy.html
> >oVirt Code of Conduct:
> https://www.ovirt.org/community/about/community-guidelines/
> >List Archives:
>
https://lists.ovirt.org/archives/list/users@ovirt.org/message/6777XHHUNWW...
> _______________________________________________
> Users mailing list -- users(a)ovirt.org
> To unsubscribe send an email to users-leave(a)ovirt.org
> Privacy Statement: https://www.ovirt.org/privacy-policy.html
> oVirt Code of Conduct:
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>
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>
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2:57 p.m.
Yep,
raid10 will be far better for writes.If you stick with the HW controller and you don't
use the oVirt/Ansible, don't forget to align the I/O .
Best Regards,Strahil Nikolov
On Thu, Dec 2, 2021 at 23:49, Marcel d'Heureuse<marcel(a)deheureu.se> wrote:
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participants (4)
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dhanaraj.ramesh＠yahoo.com -
Joseph Goldman -
Marcel d'Heureuse -
Strahil Nikolov