Hi,

 

I am having an issue with my unraid 5.0-rc8a setup. I am getting reports that Disk3 has been mounted as a Read Only File System. I'm also seeing read errors on disk0 in my syslog which I'm assuming is my parity disk.

 

I generated and attached a syslog and smart report for each drive using these instructions: http://lime-technology.com/wiki/index.php/Troubleshooting#Creating_a_forum_post_about_your_problem

 

Reading through the SMART reports I'm concerned that my drives might not be doing so well.

 

Before I run a check disk as per this post (http://lime-technology.com/forum/index.php?topic=13479.0) should I replace one or more of my drives? Or will the checkdisk fix these errors?

 

Any advice is most appreciated. Thanks in advance.

 

Rich

logs.zip

logs.zip

I don't have much time unfortunately, as I have to get to work, but I'll point out a few observations and hope others will help you with a strategy.  You do have a number of serious issues.  The syslog was unfortunately not much help as it had rotated and only contains a small useful segment.

 

* Parity drive - looks like you were rebuilding it?  Because of the errors, it should be considered invalid unfortunately (there's that word again!).  It does have 3 suspicious sectors and a number of 'uncorrectable' errors, so it should probably be taken offline and Precleared.

* Disk 1 - looks fine, but your pic shows a free space of zero which is probably wrong?

* Disk 2 - has 193 possibly bad sectors.  This may be the biggest and hardest problem to deal with.

* Disk 3 - hardware-wise looks fine except for an excessively high Load Cycle count of 856196, hopefully someone else will be able to instruct you as to how to deal with WD drives with high Load Cycle counts.  Software-wise, it's marked Read-Only, so you will need to run reiserfsck (as I think you intended), according to the Check Disk File systems page.  I would first unassign the Parity drive, since it's invalid anyways.

* Disk 4 - looks fine

* Cache drive - looks fine

 

Hopefully others can help more...

Since more than 1 disk has un-readable sectors none can be rebuilt. Use a file recovery utility, e.g., systemRescueCD, to recover the contents of disk2. The Load cycle count on disk 3 is not that bad considering the age of the disk. Load Cycle count will never cause SMART to fail; the normalized value will never go below 1. See check file systems in my sig to fix disk 3.