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-   -   mirrored device with thousand of mapping table entries (http://www.linux-archive.org/device-mapper-development/495169-mirrored-device-thousand-mapping-table-entries.html)

"Eli Malul" 02-28-2011 10:21 AM

mirrored device with thousand of mapping table entries
 
Hi,
*
I am trying to create a mirrored device with thousand of mapping table entries.
*
Unfortunately, it seems that the allocated kernel memory to satisfy this configuration is unbearable - I am talking about 6G for 10,000 entries where the used region size is for each entry is minimal (i.e. 8 blocks).
*
My questions are as follows:
1.****** Did anyone tried before to create a mirrored device with thousands of targets?
2.****** What is the estimated total allocated memory per each target?
3.****** Is there something I am missing here?
*
Thanks a lot,
Eli

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