Raid controller question

[JurgenMK]

Hello everyone,

I have a question about raid controllers, I've always used the Dell perc H700 raid controller, but am wondering if there is a better option.

I currently am running proxmox with nextcloud and some game vms. I've not found a good answer on this prior to asking about it now.

[Electronics Wizardy]

What drives are you running? What rid config?

 

Id probably move toward software raid here, and use a hba instead of a raid card

[JurgenMK]

12 minutes ago, Electronics Wizardy said:

What drives are you running? What rid config?

 

Id probably move toward software raid here, and use a hba instead of a raid card

I am running 8 wd red 4TB drives, one set of four in raid 5 for speed, and one set of four in raid 10 for redundancy, don't know if that is the best option though.

[Electronics Wizardy]

Just now, JurgenMK said:

I am running 8 wd red 4TB drives, one in raid 5 for speed, and one in raid 10 for redundancy, don't know if that is the best option though.

What are you using the storage for? What IO usage are you seeing?

 

Id probably just run one big raid 6 here if it was me.

 

Do you have the battery for the raid card?

[JurgenMK]

Just now, Electronics Wizardy said:

What are you using the storage for? What IO usage are you seeing?

 

Id probably just run one big raid 6 here if it was me.

 

Do you have the battery for the raid card?

I am running the storage for a nas and some vms that have ubuntu on them, I noticed it failed to keep a 1G link saturated while writing. so a decent random io perfomance should suffice, it also hosts a webserver with Nextcloud on it, which has an outside link of 300mbit/s. I have a battery connected to my H700, which is only a month old because the previous one failed according to the control panel.

[Electronics Wizardy]

1 minute ago, JurgenMK said:

I am running the storage for a nas and some vms that have ubuntu on them, I noticed it failed to keep a 1G link saturated while writing. so a decent random io perfomance should suffice, it also hosts a webserver with Nextcloud on it, which has an outside link of 300mbit/s. I have a battery connected to my H700, which is only a month old because the previous one failed according to the control panel.

The write performane is probably due to the cche settings, it should be able to easily fill a 1g link in writes.

 

Id relly try to go with ssdds for vms, the performance is just so much faster than any hdd setup.

 

Wht os are you running? Id probably go software raid here.

[JurgenMK]

Just now, Electronics Wizardy said:

The write performane is probably due to the cche settings, it should be able to easily fill a 1g link in writes.

 

Id relly try to go with ssdds for vms, the performance is just so much faster than any hdd setup.

 

Wht os are you running? Id probably go software raid here.

as a host os I am running debian with Proxmox on it as hypervisor

[Electronics Wizardy]

Just now, JurgenMK said:

as a host os I am running debian with Proxmox on it as hypervisor

Then Id use zfs, and skip the raid card, and get a hba.

 

Id really try to get some ssds for vms though.

[JurgenMK]

1 hour ago, Electronics Wizardy said:

Then Id use zfs, and skip the raid card, and get a hba.

 

Id really try to get some ssds for vms though.

I just found a 1TB ssd and a 256G ssd, will use those for host vm and such, what HBa's would you advise?

[Electronics Wizardy]

11 minutes ago, JurgenMK said:

I just found a 1TB ssd and a 256G ssd, will use those for host vm and such, what HBa's would you advise?

Probably something like the dell h310, but they will all work the same.

 

Then id use zfs and setup a raid z2 in proxmox for storage.

[JurgenMK]

17 hours ago, Electronics Wizardy said:

Probably something like the dell h310, but they will all work the same.

 

Then id use zfs and setup a raid z2 in proxmox for storage.

okey thanks, how might one setup a raid z2 zfs store in proxmox? is that done in the UI?

[Electronics Wizardy]

4 hours ago, JurgenMK said:

okey thanks, how might one setup a raid z2 zfs store in proxmox? is that done in the UI?

Yea you can do it in either the terminal or gui. There is a guide here for the terminal on proxmox. https://pve.proxmox.com/wiki/ZFS_on_Linux Butt hey have added a gui since then.

[JurgenMK]

hello, so I finally got all my data backedup, and the H310 doesn't pass the disks through, I have them set in non-raid in the H310 bios.
do you might know what the issue is?

[Electronics Wizardy]

1 hour ago, JurgenMK said:

hello, so I finally got all my data backedup, and the H310 doesn't pass the disks through, I have them set in non-raid in the H310 bios.
do you might know what the issue is?

The drives should just show up in the os, no configuration needed for jbod mode to work

 

High have to enable jbod mode though.