Our OSDs are BlueStore and are on regular hard drives. Each OSD has a
partition on an SSD for its DB. Wal is on the regular hard drives. Should
I move the wal to share the SSD with the DB?
Regards
R
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On 20/10/18 18:57, Robert Stanford wrote:
Our OSDs are BlueStore and are on regular hard drives. Each OSD has a
partition on an SSD for its DB. Wal is on the regular hard drives.
Should I move the wal to share the SSD with the DB?
Regards
R
___
Hi!
For sharing SSD between WAL and DB what should be placed on SSD? WAL or DB?
- Original Message -
From: "Maged Mokhtar"
To: "ceph-users"
Sent: Saturday, 20 October, 2018 20:05:44
Subject: Re: [ceph-users] Drive for Wal and Db
On 20/10/18 18:57, Robert Stanford
sharing SSD between WAL and DB what should be placed on SSD? WAL or DB?
- Original Message -
From: "Maged Mokhtar"
To: "ceph-users"
Sent: Saturday, 20 October, 2018 20:05:44
Subject: Re: [ceph-users] Drive for Wal and Db
On 20/10/18 18:57, Robert Stanford wrote:
Ou
;
> > To: "ceph-users"
> > Sent: Saturday, 20 October, 2018 20:05:44
> > Subject: Re: [ceph-users] Drive for Wal and Db
> >
> > On 20/10/18 18:57, Robert Stanford wrote:
> >
> >
> >
> >
> > Our OSDs are BlueStore and are on r
ged
>>
>> On 22/10/18 09:03, Fyodor Ustinov wrote:
>> > Hi!
>> >
>> > For sharing SSD between WAL and DB what should be placed on SSD? WAL or
>> DB?
>> >
>> > ----- Original Message -----
>> > From: "Maged Mokhtar"
are
>>> less common setups.
>>>
>>> /Maged
>>>
>>> On 22/10/18 09:03, Fyodor Ustinov wrote:
>>> > Hi!
>>> >
>>> > For sharing SSD between WAL and DB what should be placed on SSD? WAL
>>> or DB?
>>>
> Placing only wal on ssd or creating separate devices for wal and db
>>>>> are
>>>>> less common setups.
>>>>>
>>>>> /Maged
>>>>>
>>>>> On 22/10/18 09:03, Fyodor Ustinov wrote:
>>>>> > Hi!
separate devices for wal and db are
>>>> less common setups.
>>>>
>>>> /Maged
>>>>
>>>> On 22/10/18 09:03, Fyodor Ustinov wrote:
>>>> > Hi!
>>>> >
>>>> > For sharing SS
specify
>>>>>> a
>>>>>> device for wal, wal will be placed on same ssd partition with db.
>>>>>> Placing only wal on ssd or creating separate devices for wal and db
>>>>>> are
>>>>>> less common setups.
>&
t;>>>>>>
>>>>>>> If you specify a db on ssd and data on hdd and not explicitly
>>>>>>> specify a
>>>>>>> device for wal, wal will be placed on same ssd partition with db.
>>>>>>> Placing only wal on ssd or creatin
Thank you, R
>>>>>>>
>>>>>>> On Mon, Oct 22, 2018 at 5:22 AM Maged Mokhtar
>>>>>>> wrote:
>>>>>>>
>>>>>>>>
>>>>>>>> If you specify a db on ssd and data on hdd and
did exactly this and my cluster
>>>>>>>> utilization is higher than the total pool utilization by about the
>>>>>>>> number
>>>>>>>> of OSDs * wal size. I want to verify that the wal is on the SSDs too
>>>>>>
t; That's what they say, however I did exactly this and my cluster
>>>>>>>>> utilization is higher than the total pool utilization by about the
>>>>>>>>> number
>>>>>>>>> of OSDs * wal size. I want to verify that the wal is
on with db.
>>>>>> Placing only wal on ssd or creating separate devices for wal and db
>>>>>> are
>>>>>> less common setups.
>>>>>>
>>>>>> /Maged
>>>>>>
>>>>>> On 22/10/18 09:03,
nd data on hdd and not explicitly
>>>>>>> specify a
>>>>>>> device for wal, wal will be placed on same ssd partition with db.
>>>>>>> Placing only wal on ssd or creating separate devices for wal and db
>>>>>>> are
>
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