problems with redundancy

[patrick]

Hi,
I am trying to put some redundancy on my backups, but have troubles with , well, redundancy (<1 ? shouldn't it be 10 ?).

when I try this
rsc32 -wt -md2 -ya *.*
rsc32 -mu800m -wrke: -wrr500000-10% -ya

I get this:
-----------------------------------------------------------

CreateRecovery Report Generated by RSC32.EXE v3.02:

Overwrite RecoveryRecord? Yes

Encoding Method..............: RS32_DFT
Number of Data Volumes.......: 467089
Number of Recovery Volumes...: 10
Total Size...................: 231,676,048
Recovery Size................: 29,900,648
Overall Size.................: 261,576,696
Size of Volume...............: 496
Size of Buffer...............: 496 (100%)
Volume Alignment.............: Not Available
Redundancy...................: 0.002141%
Header Redundancy............: 3
Efficiency...................: 0.01659%
Transform Efficiency.........: 89.09%
Memory Required..............: 315,338,884
Number of Threads............: 4
SSE2 Support.................: Enabled
Sizing Scheme................: 3 Equal Files

Continue with Encoding? Yes

Copy User Data to Swap File...
Swapping has been done successfully in 3s

Encoding User Data into 10 recovery volumes...
Encoding has been done successfully in 2s

Memory Test is completed successfully in 687ms

RecoveryRecord has been written successfully in 7s
--------------------------------------------------------------

any idea what I am doing wrong?

also I am looking for some explanation of the terms Data Volumes, Number of Recovery Volumes and Size of Volume and their relationships... could you give me a hint or tell me where I could the information ?

thanks

[persicum]

your OS enviroment has eaten % symbol. For this case please try
rsc32 -mu800m -wrke: -wrr500000-10p -ya

[persicum]

Volume is just the same thing as a block in QuickPAR/MultiPAR

500000 data volumes means to divide a complete set of your files onto 500000 equal parts.
One recovery volume can repair any data volume.

[patrick]

yeah - works right now !
cool - shuld have though of it myself .... % in a command line ....

thanks

[jonnyboy]

What is Header Redundancy? What does increasing or decreasing Header Redundancy effect?

[jonnyboy]

@patrick, could you post your script? I would like to compare with mine. Mine is a batch file and I assume that yours is in python, is that right?

ty

[persicum]

Header contains blocks checksums. The more blockcount the bigger is header. 256000 blocks require 4 megabyte header, 512000 ones require 8 Mb header, 1 million blocks require already 16 Mb header and so on. If header file is corrupted no any repairing possible so the prog performs several backups of header. Header Redundancy 3 means that 3 copies are stored besides main VHash.RSE32