SATA hot plugging

[Antonis Christofides]

Διάβασα κάπου ότι το SATA είναι χοτ πλάγκαμπλ και μπριζώνω δίσκους
SATA στο μηχάνημά μου χωρίς να το σβήνω. Συνήθως κολλάει τελείως, αλλά
έχω την εντύπωση ότι συμβαίνει όταν βάζω το power connector, όχι το
SATA. Το πρόβλημα είναι όταν συνδέω τους δίσκους, όχι όταν τους
αποσυνδέω.

Τι έχω καταλάβει λάθος;

(Παρακάτω παραθέτω syslog από αφαίρεση δίσκου. Από πρόσθεση δίσκου δεν
βλέπω τίποτε, μάλλον γιατί το σύστημα κολλάει πριν προλάβει να γράψει
κάτι στο syslog.)

Jan  8 11:52:44 riggia kernel: [ 1768.782928] ata2: exception Emask 0x10 SAct 0x0 SErr 0x10000 action 0x2 frozen
Jan  8 11:52:44 riggia kernel: [ 1768.782942] ata2: hard resetting port
Jan  8 11:52:45 riggia kernel: [ 1769.505391] ata2: SATA link down (SStatus 0 SControl 310)
Jan  8 11:52:45 riggia kernel: [ 1769.505403] ata2: failed to recover some devices, retrying in 5 secs
Jan  8 11:52:50 riggia kernel: [ 1774.501293] ata2: hard resetting port
Jan  8 11:52:50 riggia kernel: [ 1775.224127] ata2: SATA link down (SStatus 0 SControl 310)
Jan  8 11:52:50 riggia kernel: [ 1775.224140] ata2.00: limiting speed to UDMA/100:PIO3
Jan  8 11:52:50 riggia kernel: [ 1775.224143] ata2: failed to recover some devices, retrying in 5 secs
Jan  8 11:52:55 riggia kernel: [ 1780.220018] ata2: hard resetting port
Jan  8 11:52:56 riggia kernel: [ 1780.942845] ata2: SATA link down (SStatus 0 SControl 310)
Jan  8 11:52:56 riggia kernel: [ 1780.942857] ata2.00: disabled
Jan  8 11:52:57 riggia kernel: [ 1781.446028] ata2: EH complete
Jan  8 11:52:57 riggia kernel: [ 1781.446038] ata2.00: detaching (SCSI 1:0:0:0)
Jan  8 11:52:57 riggia kernel: [ 1781.446210] sd 1:0:0:0: [sdb] Synchronizing SCSI cache
Jan  8 11:52:57 riggia kernel: [ 1781.449166] sd 1:0:0:0: [sdb] Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK,SUGGEST_OK
Jan  8 11:52:57 riggia kernel: [ 1781.449176] sd 1:0:0:0: [sdb] Stopping disk
Jan  8 11:52:57 riggia kernel: [ 1781.449500] sd 1:0:0:0: [sdb] START_STOP FAILED
Jan  8 11:52:57 riggia kernel: [ 1781.449503] sd 1:0:0:0: [sdb] Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK,SUGGEST_OK
Jan  8 11:52:57 riggia NetworkManager: <debug> [1199785977.074485] nm_hal_device_removed(): Device removed (hal udi is '/org/freedesktop/Hal/devices/pci_1095_3512_scsi_host_0_scsi_device_lun0_scsi_generic'). 
Jan  8 11:52:57 riggia NetworkManager: <debug> [1199785977.080940] nm_hal_device_removed(): Device removed (hal udi is '/org/freedesktop/Hal/devices/pci_1095_3512_scsi_host_0_scsi_device_lun0'). 
Jan  8 11:52:57 riggia NetworkManager: <debug> [1199785977.081052] nm_hal_device_removed(): Device removed (hal udi is '/org/freedesktop/Hal/devices/pci_1095_3512_scsi_host_0'). 
Jan  8 11:52:57 riggia NetworkManager: <debug> [1199785977.104865] nm_hal_device_removed(): Device removed (hal udi is '/org/freedesktop/Hal/devices/volume_uuid_F80F_6A68'). 
Jan  8 11:52:57 riggia NetworkManager: <debug> [1199785977.110082] nm_hal_device_removed(): Device removed (hal udi is '/org/freedesktop/Hal/devices/volume_uuid_02F49202F491F7DD'). 
Jan  8 11:52:57 riggia NetworkManager: <debug> [1199785977.119460] nm_hal_device_removed(): Device removed (hal udi is '/org/freedesktop/Hal/devices/storage_serial_1ATA_HDT722525DLA380_41N3150LEN_VDS41DT7DGRYKJ').