> I tried to mount as read-only and got the following error: > > bill@bill-desk:~$ sudo mount -o ro /dev/md127 /media/bill/ARRAY3 > mount: /media/bill/ARRAY3: wrong fs type, bad option, bad superblock > on /dev/md127, missing codepage or helper program, or other error. What do you get when you do blkid /dev/md127 > I have noticed a lot of this type of stuff in dmesg, repeating every 5 > minutes or so: > > [ 1212.352770] sd 3:0:4:0: [sde] tag#3885 CDB: ATA command pass > through(16) 85 06 20 00 00 00 00 00 00 00 00 00 00 00 e5 00 > [ 1212.353063] sd 3:0:4:0: [sde] tag#3885 CDB: ATA command pass > through(16) 85 06 20 00 00 00 00 00 00 00 00 00 00 00 e5 00 > [ 1212.353077] mpt2sas_cm0: sas_address(0x4433221104000000), phy(4) > [ 1212.353084] mpt2sas_cm0: enclosure logical id(0x500062b200d564c0), slot(4) > [ 1212.353090] mpt2sas_cm0: handle(0x0015), > ioc_status(success)(0x0000), smid(3886) > [ 1212.353096] mpt2sas_cm0: request_len(0), underflow(0), resid(0) > [ 1212.353101] mpt2sas_cm0: tag(0), transfer_count(0), > sc->result(0x00000002) > [ 1212.353105] mpt2sas_cm0: scsi_status(check condition)(0x02), > scsi_state(autosense valid )(0x01) > [ 1212.353110] mpt2sas_cm0: [sense_key,asc,ascq]: > [0x01,0x00,0x1d], count(22) > [ 1212.353248] sd 3:0:9:0: [sdj] tag#3886 CDB: ATA command pass ATA command pass through is usually from smart monitoring tools but this looks more like drive resets. Cables maybe?
