UNSOLVED
P
Plocmstart
1 Rookie
•
9 Posts
0
3095
February 17th, 2017 11:00
T420 IDSDM keeps losing redundancy
I recently added a IDSDM module to a T420 server and installed FreeNAS onto the SD drive after building a redundant set. Initially both SD cards "failed" at the same time after a few hours of running. In addition to reseating the module and cards I then updated the SD module firmware to 1.10 A03 which is the latest I could find on the support firmware list. This seemed to improve reliability, but only for a few days of use. Twice now after ~40-48hrs of runtime one of the cards has reported an error and redundancy has been lost (first time SD2, this time SD1). At this point I'm frustrated enough to give up and switch to a small SSD, but I'm still curious what I might have done wrong.
- Both SD cards are brand new matching Samsung Evo 32GB cards (MB-MP32DA/AM).
- FreeNAS boots from these cards, but the syslog is on a separate drive so write frequency is very low. There are essentially no reads from the cards once the system has booted.
- When both cards failed I was able to remove and re-insert them and boot the OS again (though redundancy had to be rebuilt to SD2).
Any ideas? Thanks.
Plocmstart
1 Rookie
•
9 Posts
2179
0
Posted February 17th, 2017 21:00
I suspected compatibility with the SD cards as well. I can't seem to find a list of validated/compatible cards though. Are Dell vFlash cards the only option, or have other cards also been tested? I need at least 8GB cards according to FreeNAS hardware requirements. Thanks.
Are Dell vFlash cards the only option, or have other cards also been tested? We only validate the cards that we sell. To my knowledge there is nothing proprietary about our SD cards. We use Kingston SD cards for our IDSDMs. It would be best if you use the SD cards that we validate, but if you are going to use unsupported SD cards Kingston would be the most likely to function correctly.
Thanks
Plocmstart
1 Rookie
•
9 Posts
2179
0
Posted February 21st, 2017 21:00
So I bought two Kingston 32GB cards (SDC4/32GB) which arrived today. I installed them with the SD adapter module again (with power removed from the server). I did the redundancy rebuild which took 2+hrs and then started a clean install of FreeNAS from a USB key. In the process of installing, the OS reported write errors to the mounted disk which then caused it to unmount of the disk after 5 retries. When I rebooted, the iDRAC reported both SD cards in a Failed state. I've now gone back to booting from the internal USB port for now.
So far this is still turning into a waste of money, except I can use the SD cards with my camera. I really would prefer to use them in the server though....
george.perkins
1 Rookie
•
58 Posts
1937
0
Posted June 15th, 2018 12:00
Did you ever get this to work or did you give up on the IDSDM (as your last post implies)?
Daniel My
12 Elder
•
6205 Posts
2179
0
Posted February 17th, 2017 15:00
Hello
It sounds like the cards are going offline due to a communication issue. It could be an issue with the IDSDM or almost any USB or PCIe device, but since you are using SD cards that are not validated for the system I suspect the communication issue is due to incompatibility.
Thanks