Re: Booting sparc64 from SSD

Hello,

On Mon, 19 May 2014 12:33:12 -0700
Cameron Berkenpas <[email protected]> wrote:

> Hmmm... How are you mounting the drive? I have an sb2000, and there 
> isn't really a place to mount a SATA drive. I assume the 2500 is very 
> similar.

The sb2500 has an empty 5.25" slot below the DVD drive, I abused that one.

> Maybe I should do this on one of my ultra10's... I would think an ulra10 
> is pretty low power. Anyone know if there are any SATA 6.0 Gbps 
> controllers that would work (probably not)?

Would be a waste since the U10 only has 32bit/33MHz PCI.

I've got this in my v120:
satalink0 at pci2 dev 5 function 0: Silicon Image SATALink 3512 (rev. 0x01)
satalink0: SATALink BA5 register space disabled
satalink0: bus-master DMA support present
satalink0: primary channel wired to native-PCI mode
satalink0: using ivec 15 for native-PCI interrupt
atabus2 at satalink0 channel 0
satalink0: secondary channel wired to native-PCI mode
atabus3 at satalink0 channel 1

with a 500GB disk via eSATA, still gives me about 100MB/s, likely
limited by the PCI bus ( 32bit/33MHz, just like the U10 )
The sb2500 below gets 120MB/s, there the limit is more likely the disk
since both the PCI bus and the SATA ports have plenty of bandwidth to
spare at that speed. 

have fun
Michael

> On 5/18/14, 5:39 AM, Michael wrote:
> > Hello,
> >
> > On Sun, 18 May 2014 14:03:52 +1000
> > Darren Reed <[email protected]> wrote:
> >
> >> Looking at my Sun SB2500, I'm thinking of ways to make it less noisy and
> >> less power hungry and one of the obvious ones would seem to be replacing
> >> the 10k SCSI drives with some SSD.
> >>
> >> The mechanical problem of getting everything mounted I can deal with.
> >>
> >> But what I would like some advice on is which PCI cards are well suited
> >> to being mounted inside the SB2500 and that will support booting from SSD?
> > My sb2500 boots from a CompactFlash card in an adaptor plugged into the
> > unused onboard ATA port ( the other one is hooked to the DVD drive ).
> > It's only UDMA33 but just for loading the kernel and a rescue system
> > that's more than enough. For everything else I have a 500GB SATA-II
> > disk on a Silicon Image PCI-X card, sitting in one of the 66MHz slots
> > so there's plenty of bandwidth to go.
> > The adaptor is ~$5 at monoprice, the SATA card was about $20 or so.
> > Relevant dmesg bits:
> >
> > siisata0 at pci0 dev 2 function 0: CMD Technology SiI3124 SATALink (rev. 0x02)
> > siisata0: interrupting at ivec 700
> > siisata0: SiI3124, 3.0Gb/s
> > siisata0: 64-bit 66MHz PCI
> > atabus2 at siisata0 channel 0
> > atabus3 at siisata0 channel 1
> > atabus4 at siisata0 channel 2
> > atabus5 at siisata0 channel 3
> > ...
> > aceride0 at pci2 dev 13 function 0: Acer Labs M5229 UDMA IDE Controller (rev. 0xc4)
> > aceride0: bus-master DMA support present
> > aceride0: using PIO transfers above 137GB as workaround for 48bit DMA access bug, expect reduced performance
> > aceride0: primary channel configured to native-PCI mode
> > aceride0: using ivec 1f98 for native-PCI interrupt
> > atabus0 at aceride0 channel 0
> > aceride0: secondary channel configured to native-PCI mode
> > atabus1 at aceride0 channel 1
> > ...
> > siisata0 port 0: device present, speed: 3.0Gb/s
> > wd1 at atabus2 drive 0
> > wd1: <WDC WD5000AAKX-083CA1>
> > wd1: drive supports 16-sector PIO transfers, LBA48 addressing
> > wd1: 465 GB, 969021 cyl, 16 head, 63 sec, 512 bytes/sect x 976773168 sectors
> > wd1: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)
> > wd1(siisata0:0:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100) (using DMA)
> > ...
> > wd0 at atabus0 drive 0
> > wd0: <SanDisk SDCFH-008G>
> > wd0: drive supports 1-sector PIO transfers, LBA48 addressing
> > wd0: 7629 MB, 15501 cyl, 16 head, 63 sec, 512 bytes/sect x 15625216 sectors
> > wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 4 (Ultra/66)
> > wd0(aceride0:0:0): using PIO mode 4, Ultra-DMA mode 2 (Ultra/33) (using DMA)
> >
> > have fun
> > Michael
>