Cache pool Raid 0

[greg2895]

6.4.0-rc8q:

I have 2-256gb ssds in a cache pool that I am trying to convert to raid 0 for better performance on a 10gbit connection. I followed this post to change the pool:

After running it several times this is what my pool looks like and is still showing the raid 1 capacity and performance hasn't changed:

 

 

Data, RAID1: total=28.00GiB, used=18.08GiB

Data, RAID0: total=26.00GiB, used=23.97GiB

System, RAID1: total=32.00MiB, used=16.00KiB

Metadata, RAID1: total=1.00GiB, used=30.08MiB

GlobalReserve, single: total=16.00MiB, used=0.00B

[JorgeB]

16 minutes ago, greg2895 said:

Data, RAID1: total=28.00GiB, used=18.08GiB

Data, RAID0: total=26.00GiB, used=23.97GiB

 

You have dual data profiles, try running the balance one more time and post your diagnostics if it still doesn't work.

[greg2895]

1 hour ago, johnnie.black said:

 

You have dual data profiles, try running the balance one more time and post your diagnostics if it still doesn't work.

 

After running this command again:

-dconvert=raid0 -mconvert=raid1

This was my output:

Data, RAID1: total=28.00GiB, used=18.91GiB
Data, RAID0: total=24.00GiB, used=23.15GiB
System, RAID1: total=32.00MiB, used=16.00KiB
Metadata, RAID1: total=1.00GiB, used=30.28MiB
GlobalReserve, single: total=16.00MiB, used=0.00B

[JorgeB]

1 hour ago, johnnie.black said:

post your diagnostics if it still doesn't work.

 

[greg2895]

6 minutes ago, johnnie.black said:

 

Is this what you are looking for?

 

No balance found on '/mnt/cache'

[JorgeB]

No, go to to Tools -> Diagnostics, attach the complete zip.

[greg2895]

3 minutes ago, johnnie.black said:

No, go to to Tools -> Diagnostics, attach the complete zip.

My apologies I am new to the forum! Thanks for the help and support.

servernas-diagnostics-20170918-1541.zip

[JorgeB]

There are checksum errors on the pool, that's the reason the balance is aborting, run a correcting scrub, if all data with errors is still mirrored it will be corrected.

 

You can run the scrub by clicking on the cache device on the main page, don't forget to check "Repair corrupted blocks", if there are uncorrected errors you'll need to redo your pool.

[greg2895]

I had 4 uncorrectable errors. I pulled off everything I could and ran that command again on a new pool and it worked! Thanks again for the help.