I run a small server using an ALIX box and a CF card (wd0)
plus two external disks (sd0, sd1) - see the dmesg at bottom.
The CF card holds the system, while the two external disks are
big storages that are only used sparsely; one of them is a (NFS exported)
/backup dir that is only used for about an hour a night, for example.
I wonder whether there is something like atactl(8) that I could use
to control the power management of these disks - spin them down
when not used etc, to reduce noise and heat (I have yet to measure
if it would also mean a nontrivial power saving).
I understand that atactl only works with ATA drives, which my disks
dmesgly are not, being connected through sd(4) - although what's
inside the external USB boxes is actually a Seagate Momentus (SATA)
and a a Samsung Spinpoint (SATA).
Thank you for your time
Jan
OpenBSD 4.5-stable (GENERIC) #3: Sun Nov 29 11:09:37 CET 2009
r...@www.stare.cz:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: Geode(TM) Integrated Processor by AMD PCS ("AuthenticAMD" 586-class) 499
MHz
cpu0: FPU,DE,PSE,TSC,MSR,CX8,SEP,PGE,CMOV,CFLUSH,MMX
real mem = 259284992 (247MB)
avail mem = 242405376 (231MB)
mainbus0 at root
bios0 at mainbus0: AT/286+ BIOS, date 08/21/07, BIOS32 rev. 0 @ 0xfa960
apm0 at bios0: Power Management spec V1.2 (slowidle)
apm0: AC on, battery charge unknown
pcibios0 at bios0: rev 2.1 @ 0xf0000/0xdfb4
pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xfdf40/112 (5 entries)
pcibios0: bad IRQ table checksum
pcibios0: PCI BIOS has 5 Interrupt Routing table entries
pcibios0: PCI Exclusive IRQs: 5 10 11
pcibios0: no compatible PCI ICU found
pcibios0: Warning, unable to fix up PCI interrupt routing
pcibios0: PCI bus #0 is the last bus
bios0: ROM list: 0xc0000/0x8000 0xc8000/0xa800 0xef000/0x1000!
cpu0 at mainbus0: (uniprocessor)
amdmsr0 at mainbus0
pci0 at mainbus0 bus 0: configuration mode 1 (bios)
pchb0 at pci0 dev 1 function 0 "AMD Geode LX" rev 0x31
vga1 at pci0 dev 1 function 1 "AMD Geode LX Video" rev 0x00
wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
glxsb0 at pci0 dev 1 function 2 "AMD Geode LX Crypto" rev 0x00: RNG AES
vr0 at pci0 dev 13 function 0 "VIA VT6105M RhineIII" rev 0x96: irq 11, address
00:0d:b9:0c:e1:40
ukphy0 at vr0 phy 1: Generic IEEE 802.3u media interface, rev. 3: OUI 0x004063,
model 0x0034
glxpcib0 at pci0 dev 15 function 0 "AMD CS5536 ISA" rev 0x03: rev 0, 32-bit
3579545Hz timer, watchdog, gpio
gpio0 at glxpcib0: 32 pins
pciide0 at pci0 dev 15 function 2 "AMD CS5536 IDE" rev 0x01: DMA, channel 0
wired to compatibility, channel 1 wired to compatibility
wd0 at pciide0 channel 0 drive 0: <ELITE PRO CF CARD 4GB>
wd0: 1-sector PIO, LBA, 3847MB, 7880544 sectors
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2
pciide0: channel 1 ignored (disabled)
auglx0 at pci0 dev 15 function 3 "AMD CS5536 Audio" rev 0x01: irq 11, CS5536
AC97
ac97: codec id 0x414c4770 (Avance Logic ALC203 rev 0)
ac97: codec features headphone, 20 bit DAC, 18 bit ADC, No 3D Stereo
audio0 at auglx0
ohci0 at pci0 dev 15 function 4 "AMD CS5536 USB" rev 0x02: irq 5, version 1.0,
legacy support
ehci0 at pci0 dev 15 function 5 "AMD CS5536 USB" rev 0x02: irq 5
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 "AMD EHCI root hub" rev 2.00/1.00 addr 1
isa0 at glxpcib0
isadma0 at isa0
com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
com1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo
pckbc0 at isa0 port 0x60/5
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pcppi0 at isa0 port 0x61
midi0 at pcppi0: <PC speaker>
spkr0 at pcppi0
lpt0 at isa0 port 0x378/4 irq 7
wbsio0 at isa0 port 0x2e/2: W83627HF rev 0x41
lm1 at wbsio0 port 0x290/8: W83627HF
npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16
usb1 at ohci0: USB revision 1.0
uhub1 at usb1 "AMD OHCI root hub" rev 1.00/1.00 addr 1
biomask f765 netmask ff65 ttymask ffff
mtrr: K6-family MTRR support (2 registers)
umass0 at uhub0 port 3 configuration 1 interface 0 "JMicron USB to ATA/ATAPI
Bridge" rev 2.00/1.00 addr 2
umass0: using SCSI over Bulk-Only
scsibus0 at umass0: 2 targets, initiator 0
sd0 at scsibus0 targ 1 lun 0: <ST932032, 0AS, > SCSI2 0/direct fixed
sd0: 305245MB, 512 bytes/sec, 625142448 sec total
umass1 at uhub0 port 4 configuration 1 interface 0 "JMicron USB to ATA/ATAPI
Bridge" rev 2.00/1.00 addr 3
umass1: using SCSI over Bulk-Only
scsibus1 at umass1: 2 targets, initiator 0
sd1 at scsibus1 targ 1 lun 0: <SAMSUNG, HM251JJ, > SCSI2 0/direct fixed
sd1: 238475MB, 512 bytes/sec, 488397168 sec total
softraid0 at root
root on wd0a swap on wd0b dump on wd0b
