[262] in Athena_Backup_System
Update to abs-overview
daemon@ATHENA.MIT.EDU (Bill Cattey)
Mon Jun 17 19:49:11 1996
Date: Mon, 17 Jun 1996 19:49:00 -0400 (EDT)
From: Bill Cattey <wdc@MIT.EDU>
To: athena-backup@MIT.EDU
I made a few little changes to the abs-overview doc to reflect the
current thinking on crippled mode.
I left in reference to a Crippled Mode Specification document.
That document should probably contain:
The diagaram that shows how the crippled mode ui hooks in to the universe.
The specification of what is prompted for.
The format for the dump report, and the spec for the DB update utility
to read it in.
The description of the required operational procedures to enter and
leave Crippled Mode.
Various other stuff.
I'll start working on the spec right away.
-wdc
----
Here are the diffs to the overview doc:
diff -r1.6 abs-overview.tex
74c74
< \item Disaster Mode Support
---
> \item Crippled Mode Support
222c222
< \subsection {Disaster Operational Mode Support}
---
> \subsection {Crippled Operational Mode Support}
227c227
< emergency which precludes use of actual ABS components.
---
> emergency which precludes use of the ABS database or Master components.
229,230c229,233
< Disaster mode is described in more detail in the
< {\it ABS Disaster Mode Operational Specification}.
---
> In Crippled Mode, it is possible to perform dumps of a file server,
> file server partition, or a specific volume. (In the case of AFS
> file servers, there is the option to select dumping from either
> the read/write or clone volumes.) During dumps, logs are kept which
> will be used to update the Master database when it comes back online.
231a235,236
> In Crippled Mode it is possible to perform restores of individual
> volumes and file server partitions.
232a238,246
> Crippled Mode restore is aided by the periodic production of a report
> that correlates tape to volume and tape to partition. Using grep on this
> report file to find a tape is no worse than the previous tape locate
> procedures.
>
> Crippled Mode is described in more detail in the
> {\it ABS Crippled Mode Specification}.
>
>
758c772
< running the ABS Master Server. The disaster mode specification
---
> running the ABS Master Server. The Crippled Mode Specification
824c838
< \item {\bf ABS Disaster Operational Specification} - Describes
---
> \item {\bf ABS Crippled Mode Specification} - Describes
827c841
< {\it doc/draft/crippled.txt}.
---
> {\it doc/draft/crippled.ps}.
