Disk migration and mirroring

[dibun]

I am new to Truenas and I have finalized my setup with few apps, Timemachine share and a VM. My disk setup is as follows. There is no redundancy as of today.

- Boot-Pool (512GB mSATA)
- Data pool (2TB SSD)

I want to have redundancy (Mirroring) so I would like to move both Boot-pool and data pool to 2 x 2TB SSD. I have done config backup and heavy_script backup.
I can edit the truenas-install script during install so Boot-pool doesnt take up the entire disk during install.

The HW is mini-pc so I only have 1 mSATA and 1 SATA port.

Can it be done this way?

1. mSATA disk is blank and SATA disk contains Data pool
2. Connect mSATA disk, edit truenas-install script and install the Boot-Pool (64GB)
3. Connect SATA disk with Data pool. Restore backup config and then move the Data pool to 1st disk (mSATA). Once Data Pool is migrated delete all partitions from the SSD disk.
4. Setup mirroring between mSATA and SSD disk.

Is this the best strategy or should I do it in a different way?

Thanks in advance.

 

[Arwen]

Sharing the boot drive is not supported, and may lead to problems;

I have to waste an entire drive just for booting?

This resource was originally created by user: jgreco on the TrueNAS Community Forums Archive. Please DM this account or comment in this thread to claim it. With the advent of TrueNAS Scale, we seem to be getting a large number of people from the Linux community who are not quite grasping what...

www.truenas.com

However, it is possible;

HOWTO: Split SSD with boot-pool to create partition for data (no USB install, easy config migration)

Hello, while there already exist HOWTOs about "shrinking" boot-pool, e.g. HOWTO: Using a pair of large SSDs with boot and data pools for SCALE HOWTO: TrueNAS Scale: from 32gb USB to booting from mirrored larger enterprise SSD's, create add'l partition/data pool from remaining free space Credit...

www.truenas.com

Note that this complicates disk replacement and can lead to data loss. The usual caveats prevail:

• Buyer beware
• Here be dragons
• YALZP, (Yet Another Lost ZFS Pool)

 

[dibun]

Sharing the boot drive is not supported, and may lead to problems;

I have to waste an entire drive just for booting?

This resource was originally created by user: jgreco on the TrueNAS Community Forums Archive. Please DM this account or comment in this thread to claim it. With the advent of TrueNAS Scale, we seem to be getting a large number of people from the Linux community who are not quite grasping what...

www.truenas.com

However, it is possible;

HOWTO: Split SSD with boot-pool to create partition for data (no USB install, easy config migration)

Hello, while there already exist HOWTOs about "shrinking" boot-pool, e.g. HOWTO: Using a pair of large SSDs with boot and data pools for SCALE HOWTO: TrueNAS Scale: from 32gb USB to booting from mirrored larger enterprise SSD's, create add'l partition/data pool from remaining free space Credit...

www.truenas.com

Note that this complicates disk replacement and can lead to data loss. The usual caveats prevail:

• Buyer beware
• Here be dragons
• YALZP, (Yet Another Lost ZFS Pool)

Lack of disk ports is the issue here for me. I do have mPCI-E port for WLAN cards. Can I use that for M2 drive?

 

[Patrick M. Hausen]

YALZP, (Yet Another Lost ZFS Pool)

 

[chuck32]

Honestly I'd rather use an USB drive as the boot pool than sharing the boot drive.
From what I read this should cause less headache if you have regular backups of your config.

Also it's not clear what SSD you would be using: With the 512GB M2 drive you can only create a 512 GB mirror.

 

[dibun]

Honestly I'd rather use an USB drive as the boot pool than sharing the boot drive.
From what I read this should cause less headache if you have regular backups of your config.

Also it's not clear what SSD you would be using: With the 512GB M2 drive you can only create a 512 GB mirror.

I am thinking to do the same. Does the backup config includes ZFS pool, app settings and app configs inside the app?

 

[Arwen]

Lack of disk ports is the issue here for me. I do have mPCI-E port for WLAN cards. Can I use that for M2 drive?

MiniPCIe or mSATA card slots are not compatible with M.2 slots.

It is likely that the mPCIe card slot for WLAN / WiFi does not have any SATA option.

I am thinking to do the same. Does the backup config includes ZFS pool, app settings and app configs inside the app?

The TrueNAS config backup includes all App settings and configurations that are not already inside the data pool. However, the config backup does NOT include backup of the ZFS data pool(s) actual data.

Basically the config backup is designed to allow full replacement of the boot-pool, in case of boot-pool failure.

 

[asap2go]

Lack of disk ports is the issue here for me. I do have mPCI-E port for WLAN cards. Can I use that for M2 drive?

Only with an adapter. Wouldn't recommend it.