[Info-vax] Alphaserver DS10s for sale

[gah4]

On Tuesday, January 17, 2023 at 6:55:22 AM UTC-8, chris wrote:

(snip, I wrote)

> > They are SAS SCSI disks, which are slightly rare amount SCSI disks, 
> > but not all that hard to find. And mine came with sleds, so I didn't 
> > have to worry about those. 
 
> > Some ship without, and sleds are sometimes hard to find. 
 
> I've more or less standardised on 2.5" sas now. Sata are usually 
> limited to 7200 rpm, whereas sas are 10 or 15K, even 2.5". Much 
> faster access times and lower rotational latency. 
 
I got four of the ST914602S, 146GB drives, including the
right sleds for the T5220, for $18. 

> A lot of the 2.5 sas drives around now, as users discard rotating 
> drives for ssd types. One Ebay seller here in the uk had hundreds 
> of them, all in boxes, netapp mainly and won 2 lots of 2.5 sas 
> 1200Mb (1.2Tb), 10 in the lot, for around 100 ukp. Some 450 and 600's 
> prior to that as well. They have an mtbf of well over 10e6 hours 
> and not a single duff one here yet... 
 
As I understand it, you can always connect SATA disks to a SAS
controller, but not the other way around.  

But also, many current motherboards might have a SAS controller,
marketed as SATA.  I have seen Unix-like systems use the SCSI
driver for what I thought were SATA.

But I now have a Synology box running with four 500GB SSD
as RAID 5, and with gigabit Ethernet running NFS. 

But I might try a SATA SSD in the T5220, just to see it work.