I need.
Rafael.
De: "Joachim Kraftmayer"
Enviada: 2024/11/16 06:59:39
Para: christopher.col...@dotdashmdp.com
Cc: quag...@bol.com.br, ceph-users@ceph.io
Assunto: [ceph-users] Re: Question about speeding hdd based cluster
Short comment on Replikation size 2: is not the question if you
I need.
Rafael.
De: "Joachim Kraftmayer"
Enviada: 2024/11/16 06:59:39
Para: christopher.col...@dotdashmdp.com
Cc: quag...@bol.com.br, ceph-users@ceph.io
Assunto: [ceph-users] Re: Question about speeding hdd based cluster
Short comment on Replikation size 2: is not the question if you
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Absolutely. I’ve seen it happen.
> On Nov 16, 2024, at 5:00 AM, Joachim Kraftmayer
> wrote:
>
> Short comment on Replikation size 2: is not the question if you will loose
> data only when.
>
>
>
> Joachim Kraftmayer
>
> joachim.kraftma...@clyso.com
>
> www.clyso.com
>
> Hohenzollernst
> Chris
>
>
>
> From: quag...@bol.com.br
> Sent: Wednesday, October 2, 2024 1:19 PM
> To: ceph-users@ceph.io; george.kyria...@intel.com
> Subject: [ceph-users] Re: Question about speeding hdd based cluster
>
>
>
>
>
> Hi Kyriazis,
> I work with a cluster
1:19 PM
To: ceph-users@ceph.io; george.kyria...@intel.com
Subject: [ceph-users] Re: Question about speeding hdd based cluster
Hi Kyriazis,
I work with a cluster similar to yours : 142 HDDs and 18 SSDs.
I had a lot of performance gains when I made the following settings:
1-) For
on a
metadata pool? Would it matter if the metadata pool is on hdd vs ssd?
Thank you!
George
Thank you!
George
-Original Message-----
From: Eugen Block
Sent: Wednesday, October 2, 2024 2:18 AM
To: ceph-users@ceph.io
Subject: [ceph-users] Re: Question about speeding hdd based cluster
Hi Geo
t make sense to use compression on a
metadata pool? Would it matter if the metadata pool is on hdd vs ssd?
Thank you!
George
Thank you!
George
-----Original Message-
From: Eugen Block
Sent: Wednesday, October 2, 2024 2:18 AM
To: ceph-users@ceph.io
Subject: [ceph-users] Re: Question
SSDs?
On a similar topic: Does it make sense to use compression on a metadata pool?
Would it matter if the metadata pool is on hdd vs ssd?
Thank you!
George
>> Thank you!
>>
>> George
>>
>>
>>> -Original Message-
>>> From: Eugen Block
&
utilized? Do you have some history how long a host rebuild would
usually take?
Thank you!
George
-Original Message-
From: Eugen Block
Sent: Wednesday, October 2, 2024 2:18 AM
To: ceph-users@ceph.io
Subject: [ceph-users] Re: Question about speeding hdd based cluster
Hi George,
>
>>> Would a safe approach be to move the metadata pool to ssd first, see how it
>>> goes (since it would be cheaper), and then add DB/WAL disks? How would ceph
>>> behave if we are adding DB/WAL disks "slowly" (ie one node at a time)? We
>>> hav
decreasing the size and min_size
values will change the impact. However, you must evaluate your needs for these
settings.
Rafael.
De: "Kyriazis, George"
Enviada: 2024/10/02 13:06:09
Para: ebl...@nde.ag, ceph-users@ceph.io
Assunto: [ceph-users
he backup scenario, I imagine that decreasing the size and min_size
> values will change the impact. However, you must evaluate your needs for
> these settings.
>
>
> Rafael.
>
>
>
> De: "Kyriazis, George"
> Enviada: 2024/10/02 13:06:09
> Para: ebl...@n
these settings.
Rafael.
De: "Kyriazis, George"
Enviada: 2024/10/02 13:06:09
Para: ebl...@nde.ag, ceph-users@ceph.io
Assunto: [ceph-users] Re: Question about speeding hdd based cluster
Thank you all.
The cluster is used mostly for backup of large files currently, but we are hopin
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Ds (mix hdd/ssd) spread across about 25 hosts. Hosts are
server-grade with plenty of memory and processing power.
Thank you!
George
> -Original Message-
> From: Eugen Block
> Sent: Wednesday, October 2, 2024 2:18 AM
> To: ceph-users@ceph.io
> Subject: [ceph-users] R
Hi George,
the docs [0] strongly recommend to have dedicated SSD or NVMe OSDs for
the metadata pool. You'll also benefit from dedicated DB/WAL devices.
But as Joachim already stated, it depends on a couple of factors like
the number of clients, the load they produce, file sizes etc. There's
Hi Kyriazis,
depends on the workload.
I would recommend to add ssd/nvme DB/WAL to each osd.
Joachim Kraftmayer
www.clyso.com
Hohenzollernstr. 27, 80801 Munich
Utting a. A. | HR: Augsburg | HRB: 25866 | USt. ID-Nr.: DE2754306
Kyriazis, George schrieb am Mi., 2. Okt. 2024,
07:37:
> Hello c
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