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rn-expand[2065]: Failed to get device type for /dev/md0: 25
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rn-expand[2065]: Failed to get device type for /dev/md0: 25
I'm seeing this message in the logs every 2 minutes:
rn-expand[2065]: Failed to get device type for /dev/md0: 25
I couldn't find much info on rn-expand, but it seems to relate to expanding volumes. I have a single 2TB SSD, so volume expansion shouldn't be involved. Should I be concerned? Why is this happening?
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Re: rn-expand[2065]: Failed to get device type for /dev/md0: 25
# cat /data/rsyslog/syslog | grep rn-expand ... Jul 6 12:05:27 RN202 rn-expand[2065]: Failed to get device type for /dev/md0: 25 Jul 6 12:08:38 RN202 rn-expand[2063]: Trying auto-expand (in-place) Jul 6 12:08:38 RN202 rn-expand[2063]: Considering inplace auto-expansion for data Jul 6 12:08:38 RN202 rn-expand[2063]: Checking if RAID disk sda is expandable... Jul 6 12:08:38 RN202 rn-expand[2063]: Trying auto-extend (grow onto additional disks) Jul 6 12:08:38 RN202 rn-expand[2063]: auto_extend: Checking disk sda... Jul 6 12:08:38 RN202 rn-expand[2063]: Trying xraid-expand (tiered expansion) Jul 6 12:08:38 RN202 rn-expand[2063]: Considering X-RAID auto-expansion for data Jul 6 12:08:38 RN202 rn-expand[2063]: Checking if RAID disk sda is expandable... Jul 6 12:08:38 RN202 rn-expand[2063]: No enough disks for data-0 to expand [need 2, have 0] Jul 6 12:08:38 RN202 rn-expand[2063]: 0 disks expandable in data Jul 6 12:09:38 RN202 rn-expand[2063]: Failed to get device type for /dev/md0: 25 ...Why is it trying to "auto-expand"? There's nothing to expand AFAICT.
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Re: rn-expand[2065]: Failed to get device type for /dev/md0: 25
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Re: rn-expand[2065]: Failed to get device type for /dev/md0: 25
@ggbeddow
Just want to know as well if you are having issues with your NAS? This is to check if we need to investigate further.
The rn-expand queries each device on the ReadyNAS and that involves sda, sdb... and all md devices just like md0 which the message is about. rn-expand once it goes through the device lists, it tries to identify what type md0 is in this case the query cannot be completed successfully since it will not provide any info for a device type since it's a RAID device. Not really sure what should be the entry is but if you are not having any issues with the NAS I believe we can ignore those messages.
HTH
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Re: rn-expand[2065]: Failed to get device type for /dev/md0: 25
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Re: rn-expand[2065]: Failed to get device type for /dev/md0: 25
It is actually a function that checks the NAS every 2 minutes to make sure it does not miss any opportunities on expansion. It's a notice that we will not be able to fix since it's not an error.
HTH