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drbd status - diskless 6 months 4 weeks ago #2349

Dear Salvatore,

you you already created an updated version which tracks the disk state?

Today I have found in the kern.log
Sense Key : Medium Error [current]
Jan 31 09:43:27 IT1XENMASTER1 kernel: [3165286.684777] Add. Sense: Unrecovered read error
Jan 31 09:43:27 IT1XENMASTER1 kernel: [3165286.684789] end_request: critical target error, dev sdb, sector 115222944
Jan 31 09:43:27 IT1XENMASTER1 kernel: [3165286.684803] block drbd1: local READ IO error sector 115222944+8 on sdb
Jan 31 09:43:27 IT1XENMASTER1 kernel: [3165286.684832] block drbd1: local READ IO error sector 115222952+8 on sdb
Jan 31 09:43:27 IT1XENMASTER1 kernel: [3165286.684836] block drbd1: local READ IO error sector 115222960+8 on sdb
Jan 31 09:43:27 IT1XENMASTER1 kernel: [3165286.684839] block drbd1: local READ IO error sector 115222968+8 on sdb
Jan 31 09:43:27 IT1XENMASTER1 kernel: [3165286.684842] block drbd1: local READ IO error sector 115222976+8 on sdb

However, the DRBD status shows still the connected state and no error.

So I assume the read error could be solved by reallocating the failed sectors to spare sectors.

What do you think?
BR Andreas

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drbd status - diskless 6 months 4 weeks ago #2351

  • Salvatore Costantino
  • Salvatore Costantino's Avatar
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Hi Andreas,
We do monitor all disks within a host for errors, specifically the SMART system built into all modern disks which provides predictive failure warnings and drive failure warnings. Our tracking only produces an alert and will not disconnect the DRBD resource.

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drbd status - diskless 6 months 3 weeks ago #2357

Dear Salvatore,

a HW RAID setup could not be monitored with SMART utilities as DOM0 has no knowledge about this hardware. (Except a HW RAID controller would pas information through DOM0).

BR Andreas

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