[Info-vax] Reclaim disk space for a 3PAR Storage Box

[Simon Clubley]

On 2021-08-30, Stephen Hoffman <seaohveh at hoffmanlabs.invalid> wrote:
> On 2021-08-30 12:19:51 +0000, Simon Clubley said:
>
>> Hard to believe that this is still a problem on VMS in 2021.
>
> That would be a system that hasn't seen appreciable file system updates 
> or a file system replacement in a ~quarter-century, and one that 
> remains limited to 2 TiB volumes?
>

Yes, that's the one.

And nothing looks like it is going to change soon given that the
two candidate replacement projects for it appear to have both been
cancelled.

> A whole lot has changed with storage and storage I/O since HDDs reigned 
> supreme. 12 TB drives, and 4 TB SSDs are now commonplace, among other 
> differences.
>

SSDs make me nervous because when they fail, they tend to fail hard
and sudden without any warning.

Hardware RAID or software volume shadowing would normally take care
of that but there have been enough cases in recent years where a
complete set of SSD devices all fail at the same time due to firmware
bugs to make me nervous about using them.

I have never lost a HDD due to a firmware bug.

Simon.

-- 
Simon Clubley, clubley at remove_me.eisner.decus.org-Earth.UFP
Walking destinations on a map are further away than they appear.