US Robotics 7931 Guia do Utilizador descarregar pdf (Página 116)

92 Sun StorageTek SAM Archive Configuration and Administration Guide • Version 4, Update 6, 04/07

The following list summarizes some of the similarities and differences between

archiving to online disk and archiving to removable media:

■ Unlike archive copies written to a magneto-optical disk or to a tape, archive

copies written to disk are not recorded in a catalog. In addition, archive files in

disk volumes do not appear in the historian.

■ If you are archiving to removable media volumes, you can begin archiving after

the file system is mounted without changing any of the default values in the

archiver.cmd file. In contrast, if you are archiving to disk volumes, you must

edit the archiver.cmd file and define disk archive sets before mounting the file

system.

■ Disk archiving does not rely on entries in the mcf file. You specify disk archive

sets in the archiver.cmd file, and you define disk volumes in

/etc/opt/SUNWsamfs/diskvols.conf.

Note – You do not need the diskvols.conf configuration file if you are archiving

to removable media volumes only.

A diskvols.conf file must be created on the system upon which the source files

reside. Depending on where the archive copies are written, this file also contains

the following information:

■ If the archive copies are written to a file system on that same host system, the

diskvols.conf file defines the VSNs and the paths to each VSN.

■ If the archive copies are written to a different Sun Solaris host system, the

diskvols.conf file contains the host name of that server system. In this case,

there must also be a diskvols.conf file on the server system that defines

clients that are given permission to write to that system. If you want to create

this client/server relationship, make sure that the host acting as the server has

at least one Sun StorageTek SAM file system installed on it before starting the

procedure described in “To Enable Disk Archiving” on page 95.

Caution – Extreme care must be taken when configuring the recycler if you are

using disk archiving in an environment with multiple SAM-QFS servers. The

diskvols.conf file for each SAM-QFS server must point to a unique set of disk

volume resource specifications (disk archiving target directories). If any of these are

shared between different SAM-QFS servers, then running the recycler from one

SAM-QFS server will destroy the disk archive data that is being managed by the

other SAM-QFS server.

1 2 ... 111 112 113 114 115 116 117 118 119 120 121 ... 287 288

Sem comentários

US Robotics 7931 Guia do Utilizador Página 116