[Coco] IDE to SD card Adapters.

[Gene Heskett]

On Friday 15 December 2017 22:55:37 Steve Pedersen wrote:

> Gene,
> I am so jelous of your unobtanium SCSI hardware. :-)
> I wish a new run of some of the older hard disk controllers could be
> done. They would be a no brainer purchase for me. 7 hd filesystems fun
> fun fun.

I have often wondered why Mark hasn't ordered up enough for a run of 
another 25.  That of course would mean a huge run on the worlds 
remaining supply of scsi-ii compatible disks. There are not very many of 
them surviving in 2017. The 1 GB seagate seems to be the sweet spot for 
long life.

We had 2 pieces of bought gear at the tv station that had a 5 disk raid, 
of 8GB quantum fireballs with the 80 pin subminiature scsi-iii 
interfaces. Poorly cooled, those 10k rpm disks ran hot and Jim was 
putting 2 or 3 new drives in a month.

Jim builds good hardware, and that stuff we bought was nearly 6 grand a 
rack space. so he built 2 more of those servers, in big enough rack 
boxes that cooling was not going to be a problem, running them on 
centos, and used a different raid card thats since been replaced with a 
sata-3 controller.

Originally a pair of 4 core amds cpu's, now the mobo has been replaced 
with 8 core dual intels, they are now serving 4 hidef tv channels 24/7 
on the air, while recording as many as 4 more streams from satellite 
dishes at the same time. They essentially run in parallel, so if one 
sneezes, an auto switch takes the same feed from the other and generates 
a phone call to Jim. Its grown somewhat over the last decade of course, 
but the infant mortality has long since occurred. With all the drives in 
hot swap cages tiger direct sells, replaceing a drive and rebuilding the 
array can take place at any time without interrupting even one air 
playback. Whats not to like about linux?  Properly configured, uptimes 
are in years.

Now you know why the only windows machine I ever bought got wiped and 
linux installed less than a week after I bought it.
 
Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>