On Wed, 05 Nov 2008 19:55:44 +0100 Elias Oltmanns wrote:
> # hdparm --idle-immediate /dev/sda
> # hdparm --idle-unload /dev/sda
> # hdparm --idle-immediate /dev/sda
> # echo 1000 > /sys/block/sda/device/unload_heads
> # hdparm --idle-immediate /dev/sda
Here come my test results:
shinkupaddo# ./hdparm --idle-immediate /dev/sda
/dev/sda:
issuing idle_immediate command
shinkupaddo# dmesg -c
ata1.00: SError: 0x0
shinkupaddo# ./hdparm --idle-unload /dev/sda
/dev/sda:
issuing idle_immediate_unload command
shinkupaddo# dmesg -c
ata1.00: SError: 0x0
shinkupaddo# ./hdparm --idle-immediate /dev/sda
/dev/sda:
issuing idle_immediate command
shinkupaddo# dmesg -c
ata1.00: SError: 0x0
shinkupaddo# echo 1000 > /sys/block/sda/device/unload_heads
shinkupaddo# dmesg -c
ata1: exception Emask 0x10 SAct 0x0 SErr 0x50000 action 0xf
ata1: SError: { PHYRdyChg CommWake }
ata1: hard resetting link
ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata1.00: SError: 0x0
ata1.00: ACPI cmd ef/02:00:00:00:00:a0 succeeded
ata1.00: ACPI cmd f5/00:00:00:00:00:a0 filtered out
ata1.00: ACPI cmd ef/10:03:00:00:00:a0 filtered out
ata1.00: ACPI cmd ef/02:00:00:00:00:a0 succeeded
ata1.00: ACPI cmd f5/00:00:00:00:00:a0 filtered out
ata1.00: ACPI cmd ef/10:03:00:00:00:a0 filtered out
ata1.00: configured for UDMA/100
ata1.00: configured for UDMA/100
ata1: EH complete
sd 0:0:0:0: [sda] 195371568 512-byte hardware sectors: (100 GB/93.1 GiB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
sd 0:0:0:0: [sda] 195371568 512-byte hardware sectors: (100 GB/93.1 GiB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
shinkupaddo# ./hdparm --idle-immediate /dev/sda
/dev/sda:
issuing idle_immediate command
shinkupaddo# dmesg -c
ata1.00: SError: 0x0
Any additional
shinkupaddo# echo 1000 > /sys/block/sda/device/unload_heads
Gives only
ata1.00: SError: 0x0
Regards
Evgeni
--
To unsubscribe from this list: send the line "unsubscribe linux-ide" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
