Hi there,

 

i had some major issues with my setup this week, im running 4.5.4 with 15 discs. After some connection/cabeling issues the fs of disk1 became somehow corrupt and was mounted read/only so i needed to run raiserckfs which fixed the issues and i got the drive back online with all data intact.

 

Now everything looks fine but writing to the array is much faster now, around 30mb/s where it was 17/mbs all the time. So im suspicious, i noticed this behaviour with diabled parity in the past?! Will a parity check be enough to make sure everything is fine? Also the wiki states that running raiserfschk will leave the parity intact?!

 

Thanks guys for any input ...

 

Im sorry, i forgot the syslog http://pastebin.com/w4qRNpAe

Hi there,

 

i had some major issues with my setup this week, im running 4.5.4 with 15 discs. After some connection/cabeling issues the fs of disk1 became somehow corrupt and was mounted read/only so i needed to run raiserckfs which fixed the issues and i got the drive back online with all data intact.

 

Now everything looks fine but writing to the array is much faster now, around 30mb/s where it was 17/mbs all the time. So im suspicious, i noticed this behaviour with diabled parity in the past?! Will a parity check be enough to make sure everything is fine? Also the wiki states that running raiserfschk will leave the parity intact?!

 

Thanks guys for any input ...

We have no way to analyze, since you did not attach a syslog to your post.  Your speeds sound good, and as long as all the disk indicators are "green" on the management web-page, you should be fine.

 

Good that you fixed your cabling... and also disk corruption they might have caused.

 

The recent versions of unRAID have had a major performance increase due to a newer linux kernel and affiliated fixes.  Those are probably the reason for your better performance from what you remembered.

 

Joe L.

Thanks for your reply Joe, but since i didn't upgrade to a new software version i have no idea where this performance increase comes from this is what makes me curious. I guess i will just do a parity check and see if thats working out.

I finished my parity check with 1 sync error, everything seems fine ... but I'm still wondering where this performance increase comes from. The parity check run now with 70/mbs instead of 30/ms and writing is about 25-30mb/s where it was 15mb/s. Not that i not like it, but it keeps me suspicious...

I finished my parity check with 1 sync error, everything seems fine ... but I'm still wondering where this performance increase comes from. The parity check run now with 70/mbs instead of 30/ms and writing is about 25-30mb/s where it was 15mb/s. Not that i not like it, but it keeps me suspicious...

Perhaps the cabling was getting a poor connection all along, and just causing the communications speed to a disk to be slowed by retries.

 

In any case, your syslog looks good. 

 

Joe L.