Manage File System Use of Disk Space
20
DD400 Series Restorer User Guide
•
The
/ddvar
line gives a rough idea of the amount of space used by and available to the log and
core files. Remove old logs and core files to free space in this area.
•
The
Pre-compression
line shows the amount of virtual data stored on the restorer. Virtual data
is the amount of data sent to the restorer from backup servers.
•
The
Data
line shows the actual physical space used by and available for data storage. Warning
messages go to the system log and an email alert is generated when the
Use%
figure reaches
90%, 95%, and 100%. At 100%, the restorer accepts no more data from backup servers. You
must run a
filesys clean
operation to reclaim disk space. If
Use%
is always high, use the
filesys clean show-schedule
command to see how often the operation runs
automatically, then use
filesys clean schedule
to run the operation more often.
Also consider reducing the data retention period or splitting off a portion of the backup to
another restorer.
•
The
If 100% cleaned
line is an estimate of actual physical space used, and physical space
available for data storage if you run the
filesys clean start all
operation to clean
100% of the file system. The estimate is based on the most recent
clean
operation. On a
replica, no estimate appears.
•
The
Meta Data
line tracks space used for the internal file descriptions that the restorer creates
for all stored files. The space for
Meta Data
allows for the storage of about 5 million files on a
restorer. Warning messages go to the system log and an email alert is generated when the
Use%
figure reaches 90%, 95%, and 100%. At 100%, the restorer accepts no more data from
backup servers. From the backup server, you must expire or purge backup images (backup
server files, not user files) to create free space for meta data.
•
The
Index
line tracks space used for internal restorer operations. Warning messages go to the
system log and an email alert is generated when the
Use%
figure reaches 90%, 95%, and
100%. At 100%, the restorer accepts no more data from backup servers. To create free space
for the index:
-
From the backup server, expire or purge backup images.
-
On the restorer, run the
filesys clean start
operation.
•
The
Estimated compression factor
line gives a rough idea of data compression efficiency. The
estimate is based on the most recent
clean
operation and changes if the compressibility of
data sent to the restorer changes. Note that the compression algorithm includes the metadata
and index space as part of the total storage space. On a replica, no estimate appears.
•
The
Estimate based on
line displays the date for the most recent clean operation. The date is in
the format
YYYY/MM/DD
.
Содержание DD400 Series
Страница 1: ...Software Version 3 1 2 DD400 Series Restorer User Guide ...
Страница 4: ......
Страница 18: ...xviii DD400 Series Restorer User Guide replication 237 route 245 snmp 247 system 250 user 256 Index 257 ...
Страница 38: ...Regulatory Standards Compliance xxxviii DD400 Series Restorer User Guide ...
Страница 54: ...Hardware System Level Interfaces 16 DD400 Series Restorer User Guide ...
Страница 60: ...Display the Space Usage Graphs 22 DD400 Series Restorer User Guide ...
Страница 96: ...The License Command 58 DD400 Series Restorer User Guide ...
Страница 102: ...Return Command Output to a Remote machine 64 DD400 Series Restorer User Guide ...
Страница 128: ...Clean Operations 90 DD400 Series Restorer User Guide ...
Страница 138: ...Display the History of Disk Failures 100 DD400 Series Restorer User Guide ...
Страница 182: ...CIFS Command 144 DD400 Series Restorer User Guide ...
Страница 194: ...Procedure Replace a Replica 156 DD400 Series Restorer User Guide ...
Страница 210: ...Send Log messages to Another System 172 DD400 Series Restorer User Guide ...
Страница 228: ...Operations for Trained Service Personnel 190 DD400 Series Restorer User Guide ...
Страница 300: ...262 DD400 Series Restorer User Guide ...