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1 Rookie
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23 Posts
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29042
September 13th, 2017 02:00
DELL Power vault_MD3420 - Virtual disk not on preferred path error.
Hello Friends,
We have DELL MD3420 Power vault device with 2 SSD and 4 HDD. We've got an error message saying " Virtual disk not on preferred path". Can anyone please explain what is it ?
Found below recovery step on the internet,
Redistribute virtual disks manually can fix this issue.
My doubt is that, this storage device has database running 24x7. Doing above recommandation wont distrub my database ? Whether any downtime or restart required if i Redistribute virtual disks manually ?
Please advise to clear this error.
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l00lamos
13 Posts
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July 24th, 2019 19:00
Morning Sam,
Are you able to assist me?
Regards
DELL-Josh Cr
Community Manager
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July 25th, 2019 09:00
Try updating the firmware. https://www.dell.com/support/home/us/en/04/drivers/driversdetails?driverid=nc41w&oscode=w12r2&productcode=powervault-md3420
l00lamos
13 Posts
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July 25th, 2019 19:00
Morning Josh,
Will it affect the configuration as well as the data in there?
DELL-Josh Cr
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July 26th, 2019 06:00
No it shouldn’t.
l00lamos
13 Posts
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July 29th, 2019 00:00
Hi Josh,
Can this upgrade / activate during office hour? Cause when i do the pre-check, it state that the storage array must not be the receive I/O. what does that mean?
DELL-Josh Cr
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July 29th, 2019 09:00
It is better for after hours. It won’t be accessible while the failover happens and could lose writes if there is something in the controller cache.
l00lamos
13 Posts
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July 30th, 2019 00:00
Hi Josh,
It still have automatically change one of my RAID controller module from slot 1 back to slot 0
How come, even after i update the firmware. Please advise.
DELL-Sam L
Community Manager
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August 1st, 2019 15:00
Hello l00lamos,
Can we get a new support bundle from your MD3420 so that we can review it?
Please let us know if you have any other questions.
l00lamos
13 Posts
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August 1st, 2019 18:00
Hi Sam, I have just drop you an email with the support bundle. Thanks
l00lamos
13 Posts
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August 4th, 2019 21:00
DELL-Sam L
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August 5th, 2019 09:00
Hello l00lamos,
Thanks for the logs. What I can see is that you have 2 sas connections on controller 0. However, I am not seeing any sas cables connected to controller 1. This is the reason that you are getting the error. You will need to add cables to controller 1 so that your host can see it. If you can’t and anymore sas cables, then you will need to change the owner of the virtual disks to controller 0.
Please let us know if you have any other questions.
l00lamos
13 Posts
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August 5th, 2019 20:00
Hi Sam,
I changed but it will automatically inform me to change to controller 1
l00lamos
13 Posts
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August 7th, 2019 00:00
Dear Sam and Josh,
Issue resolved. Thanks for the guidance.
simon77
1 Message
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October 14th, 2019 05:00
Hello
I have the same problem. All solutions in this issue does't work.
Could you help me
SM
stuartwilko
1 Message
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October 23rd, 2019 21:00
Hi there, was your issue resolved by a firmware upgrade?