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* [PVE-User] confirmation on osd replacement
@ 2020-11-25  8:18 mj
       [not found] ` <E9407153-C09E-4098-BC0B-F0605CC43E26@suse.com>
  0 siblings, 1 reply; 3+ messages in thread
From: mj @ 2020-11-25  8:18 UTC (permalink / raw)
  To: pve-user

Hi,

I would just like to verify/confirm something here, as we are going to 
replace our spinning OSDs with SSDs.

We have 8 OSDs per server, and two empty front driveslots available.

The proxmox boot disk is internal, and currently known as /dev/sdk

Suppose I insert two new SSDs in the (two empty) front drive bays, I 
expect the internal boot disk to shift from /dev/sdk to /dev/sdm

The questions:
- should we expect boot problems or other side-effects of doing that?
(of course I will test on the first server, I'd just like to know what 
to expect)

And then I am going to first add per server two new bluestore SSDs, 
making a (temporarily) total of 10 OSDs per server.

And then I want to replace the 8 remaining filestore spinning OSDs with 
6 bluestore SSDs. Making again a total of 8 OSDs per server.

The idea is: first add two SSDs to increase IO capacity for the rest of 
the procedure, while at the same time reducing stress on our filestore 
journal SSD (wear level=75%)

Any comments?

MJ



^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2020-11-26 20:32 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-11-25  8:18 [PVE-User] confirmation on osd replacement mj
     [not found] ` <E9407153-C09E-4098-BC0B-F0605CC43E26@suse.com>
2020-11-26  7:54   ` mj
     [not found]     ` <7B860047-76E2-44B5-8F66-D04FFA216C07@suse.com>
2020-11-26 20:31       ` mj

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