16GB optane for proxmox boot drives?

[ianm_ozzy]

 

So it seems proxmox does not play  well with standard cheap SSDs.

I have a had another that looks like failing.

Presently I have  2 x intel optane 16GB as  deduplicaton devices on a truenas scale virtual machine.

 

I will maybe back up EVERYTHING, recreate the NAS with no de-duplicaton special devices.

They are about 4.5GB used each.  It works well.

Instead it just use the memory instead - for deduplicaton data.  It plays nice as it is for 1MB block size ISCSI devices

Those two 16GB optane  I wish to use as proxmox boot drives.

As I understand they have high endurance & very cheap. read & write speeds are not so great.

 

The server is for entertainment  related purposes & not for  livelihood related.

 

So  the plan is  for proxmox.

 2 x 16GB intel optane mirrored as boot drive.

 3 x 500GB standard sata SSDs in raidZ1 for virtual machines.

 

Also a sata SSD adapter for hard drives - to pass through to truenas scale.

 

The above hardware I have already.

 

So proxmox users - a question - is 16GB enough for a boot drive?

 

If practical , will buy some more very cheap 16GB o instead of failures.

Also more of the cheapest 500GB sata SSDs when one fails & replace.

 

Thanks

 

 

 

 

 

[Electronics Wizardy]

I have done this exact setup, and it works fine.

 

But the 16GB optane drive really don't have that much endurace ~180TB, so a normally ssd will be pretty simmilar. And the optane drives will go read only at about 10% more than the rated writes. 

 

Proxmox only writes about 10TB a year on the boot drives, so a standard ssd should work fine. 

[ianm_ozzy]

6 minutes ago, Electronics Wizardy said:

I have done this exact setup, and it works fine.

 

But the 16GB optane drive really don't have that much endurace ~180TB, so a normally ssd will be pretty simmilar. And the optane drives will go read only at about 10% more than the rated writes. 

 

Proxmox only writes about 10TB a year on the boot drives, so a standard ssd should work fine. 

Interesting.

The 240GB proxmox sata SSD I got about 6 months ago is beginning to fail now.

I had a 240GB before that, for about 2 years, which failed.

They are getting worse and worse in terms of quality as time goes on.

It is not a surprise, using 4 bits/ cell and  no DRAM cache.

 

SSDs seem to have gone up in price recently which is annoying.

 

Intel 16GB optane are very cheap.

As stated is for a home server geared to entertainment, so  do not wish to spend much.

 

How long were you using 16GB optane as boot drives?

Did they fail?

 

Thanks

 

 

 

[Bersella AI]

1 hour ago, ianm_ozzy said:

How long were you using 16GB optane as boot drives?

Did they fail?

I have utilized 3 sticks of Optane 16GB in my server, 1 of which as boot drive for TrueNAS Scale, and 2 as cache drives, since early January. They have done pretty well so far.

All electronics are probable to fail, including Optane. It is said that 2nd-gen Optane M10 series may be more likely to have early defects, but they have double durability and lower power consumption, compared to first-gen Optane. Even with 182.5TB of durability, Optane sticks can sustain over 10K cycles, equivalent to SLC Flash chips.

[Electronics Wizardy]

3 hours ago, ianm_ozzy said:

Interesting.

The 240GB proxmox sata SSD I got about 6 months ago is beginning to fail now.

I had a 240GB before that, for about 2 years, which failed.

They are getting worse and worse in terms of quality as time goes on.

It is not a surprise, using 4 bits/ cell and  no DRAM cache.

 

SSDs seem to have gone up in price recently which is annoying.

 

Intel 16GB optane are very cheap.

As stated is for a home server geared to entertainment, so  do not wish to spend much.

 

How long were you using 16GB optane as boot drives?

Did they fail?

 

Thanks

 

 

 

How many writes did those drives have reported? What issues do they have? Could just be your drives, as I have deployed a lot of SSDs with a much lower failure rate than that.

 

OPtane drives should work fine if you can get them cheap, but other cheap larger drives should also be fine. I've bought a lot of used server ssds without issues.

 

1 hour ago, Bersella AI said:

All electronics are probable to fail, including Optane. It is said that 2nd-gen Optane M10 series may be more likely to have early defects, but they have double durability and lower power consumption, compared to first-gen Optane. Even with 182.5TB of durability, Optane sticks can sustain over 10K cycles, equivalent to SLC Flash chips.

The 10k cycle count doesn't matter cause they basically self destruct after 110% of the rated write limit.

[ianm_ozzy]

I have the boot drive 'behaving' for now. I reduced the memory in the VMs, and turned of trivial ones.
I had various errors, like the boot turning into a read only filesystem, or kernel panic.

Now there is 0 swap space used, so no need to rapid reads/writes.
It it those cheap SSDs struggling with proxmox.

What I really need to know is a 16GB drive enough for the boot drive,.
I doubt it will have any I/O delay issues.


So has anyone actually been using 16GB optane as boot drives for proxmox - long term?

[m9x3mos]

21 hours ago, ianm_ozzy said:

 

So it seems proxmox does not play  well with standard cheap SSDs.

I have a had another that looks like failing.

Presently I have  2 x intel optane 16GB as  deduplicaton devices on a truenas scale virtual machine.

 

I will maybe back up EVERYTHING, recreate the NAS with no de-duplicaton special devices.

They are about 4.5GB used each.  It works well.

Instead it just use the memory instead - for deduplicaton data.  It plays nice as it is for 1MB block size ISCSI devices

Those two 16GB optane  I wish to use as proxmox boot drives.

As I understand they have high endurance & very cheap. read & write speeds are not so great.

 

The server is for entertainment  related purposes & not for  livelihood related.

 

So  the plan is  for proxmox.

 2 x 16GB intel optane mirrored as boot drive.

 3 x 500GB standard sata SSDs in raidZ1 for virtual machines.

 

Also a sata SSD adapter for hard drives - to pass through to truenas scale.

 

The above hardware I have already.

 

So proxmox users - a question - is 16GB enough for a boot drive?

 

If practical , will buy some more very cheap 16GB o instead of failures.

Also more of the cheapest 500GB sata SSDs when one fails & replace.

 

Thanks

 

 

 

 

 

As a boot drive they will most likely be fine if all other storage are on other volumes and you don't have heavy logging on. 

The thing you might have an issue with is the USB hard drives. Getting some of those to pass through is not easy and I couldn't get my 5 bay enclosure to pass through as it would only randomly see 2 of the 5 drives. 

[LIGISTX]

I’m running proxmox on a pair of Samsung 980’s…. It’s been fine for 1.5 years, as has my friends running for the same time on a 980 as well, and another buddy for about a year running on a SATA Samsung drive.