PBS OS On Flash Drive?

[nater]

Hello all,

I've got PBS running in a VM on a couple of TrueNAS servers.

In order to eliminate hard drive accessing clicking sounds when the NAS isn't in use, I'm looking to move the PBS OS VM and the TrueNAS apps over to some form of solid state memory (rather than on the HDD pool).

These are very small chassis (Supermicro 5018-FTN4) that I've already designed and 3d printed brackets for to get a couple more 2.5in drives into already, so there is no room for any other 2.5in drives. As such, the two options are USB flash drives or USB-attached m.2-to-usb adapters.

At $10/drive for reputable flash drives (I'd get two different models and mirror them), that's a fair bit less than the m.2 direction, so the question is: How write-intensive is the PBS OS? I understand PVE is fairly chatty with the logs so this is not recommended, but I have not been able to find anything about PBS on this matter.

Note that this is for personal use.

Thank you

 

[Richard]

Hello all,

I've got PBS running in a VM on a couple of TrueNAS servers.

In order to eliminate hard drive accessing clicking sounds when the NAS isn't in use, I'm looking to move the PBS OS VM and the TrueNAS apps over to some form of solid state memory (rather than on the HDD pool).

These are very small chassis (Supermicro 5018-FTN4) that I've already designed and 3d printed brackets for to get a couple more 2.5in drives into already, so there is no room for any other 2.5in drives. As such, the two options are USB flash drives or USB-attached m.2-to-usb adapters.

At $10/drive for reputable flash drives (I'd get two different models and mirror them), that's a fair bit less than the m.2 direction, so the question is: How write-intensive is the PBS OS? I understand PVE is fairly chatty with the logs so this is not recommended, but I have not been able to find anything about PBS on this matter.

Note that this is for personal use.

Thank you

Works in principle with flash/USB drives too, the question is reliability (for productive use not recommended, however, everybody has to decide what his needs are). Sometimes for boot the option "rootdelay=5" is required.

 

[nater]

Works in principle with flash/USB drives too, the question is reliability (for productive use not recommended, however, everybody has to decide what his needs are). Sometimes for boot the option "rootdelay=5" is required.

Thank you. How write-intensive is the PBS OS?

 

[VictorSTS]

As an option, if you still have SATA ports, 1.8'' inches SSD sata drives are just 5mm tall, so you might be able to fit one or two of those drives over the ones you currently have. You could even remove the PCB from the case and make it even thinner There are some datacenter quality drives relatively cheap on second hand and auction sites.

 

[_gabriel]

here i use mlc 1 usb drive 64gb for pve itself only, without swap , on 2 systems : first from 2021-01 the other from 2022-01.
If usb crash, pve or pbs can be fast re installed.
write down main settings or tweaks in a txt +
backup/restore vm .conf / pve cfg or pbs cfg
zfs prohibited because of its write intensive + write amplification.