Re: ZFS + usb in trouble?

From: Alexander Nedotsukov <bland_at_bbnest.net>
Date: Tue, 22 Jan 2013 23:47:29 +0900
Hi Pawel,

Here what I did.

# geli onetime -a hmac/sha1 -s 4096 /dev/da5 
# dmesg | tail -15
wlan0: link state changed to UP
ugen5.4: <USBest Technology> at usbus5
umass2: <USBest Technology USB Mass Storage Device, class 0/0, rev 2.00/1.00, addr 4> on usbus5
umass2:  SCSI over Bulk-Only; quirks = 0x0100
umass2:4:2:-1: Attached to scbus4
da5 at umass-sim2 bus 2 scbus4 target 0 lun 0
da5: <USB2.0 FlashDisk 0.00> Removable Direct Access SCSI-2 device 
da5: 40.000MB/s transfers
da5: 983MB (2015231 512 byte sectors: 64H 32S/T 983C)
GEOM_ELI: Device da5.eli created.
GEOM_ELI: Encryption: AES-XTS 128
GEOM_ELI:  Integrity: HMAC/SHA1
GEOM_ELI:     Crypto: software
GEOM_ELI: da5.eli: Failed to authenticate 4096 bytes of data at offset 4096.
GEOM_ELI: da5.eli: Failed to authenticate 4096 bytes of data at offset 0.

# dd if=/dev/random of=/dev/da5.eli bs=1m
dd: /dev/da5.eli: short write on character device
dd: /dev/da5.eli: end of device
875+0 records in
874+1 records out
917151744 bytes transferred in 1530.831674 secs (599120 bytes/sec)

# dd if=/dev/da5.eli of=/dev/null bs=1m
874+1 records in
874+1 records out
917151744 bytes transferred in 178.874312 secs (5127353 bytes/sec)

All clear. No new errors.

Zpool created on the same usb stick is still failing with cksum errors.

# usbconfig -d 5.4 add_quirk UQ_MSC_NO_SYNC_CACHE

umass2:  SCSI over Bulk-Only; quirks = 0x4000

Re-created zpool is still failing with cksum errors. Every new scrub run is triggering another "repairing".

Thanks,
Alexander.


On 22.01.2013, at 6:17, Pawel Jakub Dawidek <pjd_at_FreeBSD.org> wrote:

> I used wrong Hans' login, resending with the proper e-mail.
> 
> On Mon, Jan 21, 2013 at 09:58:52PM +0100, Pawel Jakub Dawidek wrote:
>> On Sat, Jan 19, 2013 at 11:26:39PM +0900, Alexander Nedotsukov wrote:
>>> Let's use some space out of it.
>>> 
>>> #dd if=/dev/zero of=/tank/foo
>>> ^C250939+0 records in
>>> 250938+0 records out
>>> 128480256 bytes transferred in 30.402453 secs (4225983 bytes/sec)
>>> 
>>> Oops...
>>> 
>>> #zpool status
>>>  pool: tank
>>> state: ONLINE
>>> status: One or more devices has experienced an unrecoverable error.  An
>>> 	attempt was made to correct the error.  Applications are unaffected.
>>> action: Determine if the device needs to be replaced, and clear the errors
>>> 	using 'zpool clear' or replace the device with 'zpool replace'.
>>>   see: http://illumos.org/msg/ZFS-8000-9P
>>>  scan: scrub repaired 5K in 0h0m with 0 errors on Sat Jan 19 23:11:20 2013
>>> config:
>>> 
>>> 	NAME        STATE     READ WRITE CKSUM
>>> 	tank        ONLINE       0     0     0
>>> 	  raidz1-0  ONLINE       0     0     0
>>> 	    da1     ONLINE       0     0     1
>>> 	    da2     ONLINE       0     0     0
>>> 	    da3     ONLINE       0     0     1
>> 
>> This seems like umass/usb issue (hps_at_ CCed). Can you also try GELI with
>> data integrity verification?
>> 
>> 
>> 	# geli onetime -a hmac/sha1 -s 4096 /dev/da0
>> 
>> It will report some problems due to GEOM tasting, but ignore them and run:
>> 
>> 	# dd if=/dev/random of=/dev/da0.eli bs=1m
>> 
>> Once that done try to read the data back and look at the logs to see if
>> any corruptions are reported.
>> 
>> -- 
>> Pawel Jakub Dawidek                       http://www.wheelsystems.com
>> FreeBSD committer                         http://www.FreeBSD.org
>> Am I Evil? Yes, I Am!                     http://tupytaj.pl
> 
> 
> -- 
> Pawel Jakub Dawidek                       http://www.wheelsystems.com
> FreeBSD committer                         http://www.FreeBSD.org
> Am I Evil? Yes, I Am!                     http://tupytaj.pl
Received on Tue Jan 22 2013 - 14:06:08 UTC

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