[Info-vax] Best "Standalone" boot versions for Alpha and Itanium

[rdpiccard at gmail.com]

On Tuesday, January 12, 2016 at 8:07:51 PM UTC-5, Rich Jordan wrote:

[prior posts snipped]

> 
> Nice ideas.  Not my money that would be being spent.  There isn't enough storage attachment capacity to do disk backups as described (there are three staging disks, they are backed up to every night, but they are not full safe images, so we're going to keep them safe and separate but they are not the safety copy needed).  Honestly, don't know why because we tested backup parameters, RMS parameters,, disk init parameters to exhaustion, and asked HP for help, and chose what gave us the fastest backups, and the disk backups are just not that much faster than tape on this system.  Its all Compaq universal disk U320 15Krpm SCSI (except for the internal SAS system disk mirrorset), with the mirror pairs on different channels and the backup staging disks on a third channel.  
> 
> We'll do what we can.
> 

Once upon a time, if I recall correctly, I found that backup to a saveset on the target disk, is much faster than a regular file-by-file backup to the target with the target disk mounted regularly, because it seeks one track at a time as the saveset fills up each track, instead of seeking back and forth between the data file, its parent directory, indexf.sys, quota.sys, etc.  Modern disk drives have faster seek times, but I suspect the principle still applies.  I don't recall with confidence whether that required mounting the target disk /foreign.

Dick Piccard