Reboot with faulty drive, devices names change, server does not boot
I have had this problem on 2 servers and I want to know how should I handle the problem. My server has an SSD (/dev/sda) and two SATA drives (/dev/sdb and /dev/sdc).
The second drive (/dev/sdb) has problem and sometimes the drive is there but filesystem has problem and sometimes the device totally disappears.
Case 1- When the drive is there (ls /dev shows it) but filesystem has problem and I reboot the server (because device is busy and cannot be fsck-ed.), the server will not boot because some services have dependencies on that drive and those services somehow halt boot process.
Drives are mounted in /etc/fstab onto /sdb1 and /sdc1 directories.
Case 2- When the drive (/dev/sdb) disappears,the third drive (previously /dev/sdc) is renamed to /dev/sdb and you can guess it causes problems because that is not the drive my programs expect to see. Again the server will not boot because programs do not see their data on the new sdb.
Question 1: How may I configure the server, so that it boots even if some services cannot see their dependencies on failed drives?
Question 2: How can I avoid drives from appearing with different /dev/name if other drives disappear (failed hardware etc.)?
linux mount hard-disk fstab fsck
edited yesterday
Rui F Ribeiro
39.3k1479131
asked 2 days ago
wmacwmac
1093
New contributor
wmac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
I have had this problem on 2 servers and I want to know how should I handle the problem. My server has an SSD (/dev/sda) and two SATA drives (/dev/sdb and /dev/sdc).
The second drive (/dev/sdb) has problem and sometimes the drive is there but filesystem has problem and sometimes the device totally disappears.
Case 1- When the drive is there (ls /dev shows it) but filesystem has problem and I reboot the server (because device is busy and cannot be fsck-ed.), the server will not boot because some services have dependencies on that drive and those services somehow halt boot process.
Drives are mounted in /etc/fstab onto /sdb1 and /sdc1 directories.
Case 2- When the drive (/dev/sdb) disappears,the third drive (previously /dev/sdc) is renamed to /dev/sdb and you can guess it causes problems because that is not the drive my programs expect to see. Again the server will not boot because programs do not see their data on the new sdb.
Question 1: How may I configure the server, so that it boots even if some services cannot see their dependencies on failed drives?
Question 2: How can I avoid drives from appearing with different /dev/name if other drives disappear (failed hardware etc.)?
linux mount hard-disk fstab fsck
edited yesterday
Rui F Ribeiro
39.3k1479131
asked 2 days ago
wmacwmac
1093
New contributor
wmac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
5
2. wiki.archlinux.org/index.php/Persistent_block_device_naming
– jasonwryan
2 days ago
Could you include the output tosmartctl --all /dev/sdbin your question to be 100% sure what you're facing is imminent drive failure? (now only 99% certain).
– Fabby
yesterday
add a comment |
I have had this problem on 2 servers and I want to know how should I handle the problem. My server has an SSD (/dev/sda) and two SATA drives (/dev/sdb and /dev/sdc).
The second drive (/dev/sdb) has problem and sometimes the drive is there but filesystem has problem and sometimes the device totally disappears.
Case 1- When the drive is there (ls /dev shows it) but filesystem has problem and I reboot the server (because device is busy and cannot be fsck-ed.), the server will not boot because some services have dependencies on that drive and those services somehow halt boot process.
Drives are mounted in /etc/fstab onto /sdb1 and /sdc1 directories.
Case 2- When the drive (/dev/sdb) disappears,the third drive (previously /dev/sdc) is renamed to /dev/sdb and you can guess it causes problems because that is not the drive my programs expect to see. Again the server will not boot because programs do not see their data on the new sdb.
Question 1: How may I configure the server, so that it boots even if some services cannot see their dependencies on failed drives?
Question 2: How can I avoid drives from appearing with different /dev/name if other drives disappear (failed hardware etc.)?
linux mount hard-disk fstab fsck
edited yesterday
Rui F Ribeiro
39.3k1479131
asked 2 days ago
wmacwmac
1093
New contributor
wmac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I have had this problem on 2 servers and I want to know how should I handle the problem. My server has an SSD (/dev/sda) and two SATA drives (/dev/sdb and /dev/sdc).
The second drive (/dev/sdb) has problem and sometimes the drive is there but filesystem has problem and sometimes the device totally disappears.
Case 1- When the drive is there (ls /dev shows it) but filesystem has problem and I reboot the server (because device is busy and cannot be fsck-ed.), the server will not boot because some services have dependencies on that drive and those services somehow halt boot process.
Drives are mounted in /etc/fstab onto /sdb1 and /sdc1 directories.
Case 2- When the drive (/dev/sdb) disappears,the third drive (previously /dev/sdc) is renamed to /dev/sdb and you can guess it causes problems because that is not the drive my programs expect to see. Again the server will not boot because programs do not see their data on the new sdb.
Question 1: How may I configure the server, so that it boots even if some services cannot see their dependencies on failed drives?
Question 2: How can I avoid drives from appearing with different /dev/name if other drives disappear (failed hardware etc.)?
linux mount hard-disk fstab fsck
linux mount hard-disk fstab fsck
edited yesterday
Rui F Ribeiro
39.3k1479131
asked 2 days ago
wmacwmac
1093
New contributor
wmac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited yesterday
Rui F Ribeiro
39.3k1479131
asked 2 days ago
wmacwmac
1093
New contributor
wmac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited yesterday
Rui F Ribeiro
39.3k1479131
edited yesterday
Rui F Ribeiro
39.3k1479131
edited yesterday
Rui F Ribeiro
39.3k1479131
39.3k1479131
asked 2 days ago
wmacwmac
1093
New contributor
wmac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 2 days ago
wmacwmac
1093
asked 2 days ago
wmacwmac
1093
1093
New contributor
wmac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
wmac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
wmac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
5
2. wiki.archlinux.org/index.php/Persistent_block_device_naming
– jasonwryan
2 days ago
Could you include the output tosmartctl --all /dev/sdbin your question to be 100% sure what you're facing is imminent drive failure? (now only 99% certain).
– Fabby
yesterday
add a comment |
5
2. wiki.archlinux.org/index.php/Persistent_block_device_naming
– jasonwryan
2 days ago
Could you include the output tosmartctl --all /dev/sdbin your question to be 100% sure what you're facing is imminent drive failure? (now only 99% certain).
– Fabby
yesterday
5
5
2. wiki.archlinux.org/index.php/Persistent_block_device_naming
– jasonwryan
2 days ago
2. wiki.archlinux.org/index.php/Persistent_block_device_naming
– jasonwryan
2 days ago
Could you include the output to
smartctl --all /dev/sdb in your question to be 100% sure what you're facing is imminent drive failure? (now only 99% certain).– Fabby
yesterday
Could you include the output to
smartctl --all /dev/sdb in your question to be 100% sure what you're facing is imminent drive failure? (now only 99% certain).– Fabby
yesterday
add a comment |
1 Answer
1
active
oldest
votes
Backup /dev/sdb immediately!
Whereas SSDs die suddenly like a heart attack, HDDs die slowly like cancer.
What you are trying to do is to have a software workaround for a hardware problem. You should replace the drive as a disappearing drive means that it's running on its last legs and will die any minute/hour/day now.
Use ddrescue to image that drive onto one of equal or larger size.
This is not an answer to your questions, but this is what you need...
answered 2 days ago
FabbyFabby
3,74011228
Thanks for the advise. If I can convince the service provider that their HD has problem, I'll change it asap.
– wmac
yesterday
Please don't thank me! ;-) If this answer did help, just click the little grey ☑ at the left of this text right now turning it into beautiful green. If you do not like the answer, click on the little grey down-arrow below the number, and if you really like the answer, click on the little grey ☑ and the little up-arrow... If you have any further questions, just ask another one! ;-)
– Fabby
yesterday
add a comment |
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1 Answer
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Backup /dev/sdb immediately!
Whereas SSDs die suddenly like a heart attack, HDDs die slowly like cancer.
What you are trying to do is to have a software workaround for a hardware problem. You should replace the drive as a disappearing drive means that it's running on its last legs and will die any minute/hour/day now.
Use ddrescue to image that drive onto one of equal or larger size.
This is not an answer to your questions, but this is what you need...
answered 2 days ago
FabbyFabby
3,74011228
Thanks for the advise. If I can convince the service provider that their HD has problem, I'll change it asap.
– wmac
yesterday
Please don't thank me! ;-) If this answer did help, just click the little grey ☑ at the left of this text right now turning it into beautiful green. If you do not like the answer, click on the little grey down-arrow below the number, and if you really like the answer, click on the little grey ☑ and the little up-arrow... If you have any further questions, just ask another one! ;-)
– Fabby
yesterday
add a comment |
Backup /dev/sdb immediately!
Whereas SSDs die suddenly like a heart attack, HDDs die slowly like cancer.
What you are trying to do is to have a software workaround for a hardware problem. You should replace the drive as a disappearing drive means that it's running on its last legs and will die any minute/hour/day now.
Use ddrescue to image that drive onto one of equal or larger size.
This is not an answer to your questions, but this is what you need...
answered 2 days ago
FabbyFabby
3,74011228
Thanks for the advise. If I can convince the service provider that their HD has problem, I'll change it asap.
– wmac
yesterday
Please don't thank me! ;-) If this answer did help, just click the little grey ☑ at the left of this text right now turning it into beautiful green. If you do not like the answer, click on the little grey down-arrow below the number, and if you really like the answer, click on the little grey ☑ and the little up-arrow... If you have any further questions, just ask another one! ;-)
– Fabby
yesterday
add a comment |
Backup /dev/sdb immediately!
Whereas SSDs die suddenly like a heart attack, HDDs die slowly like cancer.
What you are trying to do is to have a software workaround for a hardware problem. You should replace the drive as a disappearing drive means that it's running on its last legs and will die any minute/hour/day now.
Use ddrescue to image that drive onto one of equal or larger size.
This is not an answer to your questions, but this is what you need...
answered 2 days ago
FabbyFabby
3,74011228
Backup /dev/sdb immediately!
Whereas SSDs die suddenly like a heart attack, HDDs die slowly like cancer.
What you are trying to do is to have a software workaround for a hardware problem. You should replace the drive as a disappearing drive means that it's running on its last legs and will die any minute/hour/day now.
Use ddrescue to image that drive onto one of equal or larger size.
This is not an answer to your questions, but this is what you need...
answered 2 days ago
FabbyFabby
3,74011228
answered 2 days ago
FabbyFabby
3,74011228
answered 2 days ago
FabbyFabby
3,74011228
answered 2 days ago
FabbyFabby
3,74011228
3,74011228
Thanks for the advise. If I can convince the service provider that their HD has problem, I'll change it asap.
– wmac
yesterday
Please don't thank me! ;-) If this answer did help, just click the little grey ☑ at the left of this text right now turning it into beautiful green. If you do not like the answer, click on the little grey down-arrow below the number, and if you really like the answer, click on the little grey ☑ and the little up-arrow... If you have any further questions, just ask another one! ;-)
– Fabby
yesterday
add a comment |
Thanks for the advise. If I can convince the service provider that their HD has problem, I'll change it asap.
– wmac
yesterday
Please don't thank me! ;-) If this answer did help, just click the little grey ☑ at the left of this text right now turning it into beautiful green. If you do not like the answer, click on the little grey down-arrow below the number, and if you really like the answer, click on the little grey ☑ and the little up-arrow... If you have any further questions, just ask another one! ;-)
– Fabby
yesterday
Thanks for the advise. If I can convince the service provider that their HD has problem, I'll change it asap.
– wmac
yesterday
Thanks for the advise. If I can convince the service provider that their HD has problem, I'll change it asap.
– wmac
yesterday
Please don't thank me! ;-) If this answer did help, just click the little grey ☑ at the left of this text right now turning it into beautiful green. If you do not like the answer, click on the little grey down-arrow below the number, and if you really like the answer, click on the little grey ☑ and the little up-arrow... If you have any further questions, just ask another one! ;-)
– Fabby
yesterday
Please don't thank me! ;-) If this answer did help, just click the little grey ☑ at the left of this text right now turning it into beautiful green. If you do not like the answer, click on the little grey down-arrow below the number, and if you really like the answer, click on the little grey ☑ and the little up-arrow... If you have any further questions, just ask another one! ;-)
– Fabby
yesterday
add a comment |
wmac is a new contributor. Be nice, and check out our Code of Conduct.
wmac is a new contributor. Be nice, and check out our Code of Conduct.
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5
2. wiki.archlinux.org/index.php/Persistent_block_device_naming
– jasonwryan
2 days ago
Could you include the output to
smartctl --all /dev/sdbin your question to be 100% sure what you're facing is imminent drive failure? (now only 99% certain).– Fabby
yesterday