Re: md RAID1 passes I/O errors to the filesystem despite having alive mirrors?

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



> > This is correct, but I should note that I did not add it as
> > write-mostly just
> > because it's an older drive, but because it is my normal set-up for
> > md3:
> > a RAID1 mirror of a fast SSD (sdf) and a write-mostly HDD (sdg in
> > this case).
> 
> Again, I find it odd that sdg while rebuilding is reading any sectors.
> The read errors are coming from sdg. That it's also write-mostly
> enhances the mystery why sdg is being read from.
> 
> I would fail the HDD, and btrfs scrub the array which in effect should
> scrub only sdf. And it may also need an offline btrfsck. The source
> (sdf) is already suspect because of btrfs not finding checksums where
> it was expecting to find them, and then on top of this you're getting
> sdg producing bad sector errors on reads.

Have you done a SMART check of sdg? smartctl -H first, then smartctl -t short, then smartctl -t long (with smartctl -H between them)

> You might also consider posting the configuration and full dmesg to
> the btrfs list. I'm curious what btrfs developers think of this
> configuration.

It's not btrfs - it's below that.

Vennlige hilsener / Best regards

roy
--
Roy Sigurd Karlsbakk
(+47) 98013356
roy@xxxxxxxxxxxxx
http://blogg.karlsbakk.net/
GPG Public key: http://karlsbakk.net/roysigurdkarlsbakk.pubkey.txt
--
I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med xenotyp etymologi. I de fleste tilfeller eksisterer adekvate og relevante synonymer på norsk.
--
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux RAID Wiki]     [ATA RAID]     [Linux SCSI Target Infrastructure]     [Linux Block]     [Linux IDE]     [Linux SCSI]     [Linux Hams]     [Device Mapper]     [Device Mapper Cryptographics]     [Kernel]     [Linux Admin]     [Linux Net]     [GFS]     [RPM]     [git]     [Yosemite Forum]


  Powered by Linux