I had the opportunity to test various configuration options in EV as well as on an EMC Centera. A customer has stored the EV archive data on NTFS devices and wanted to move the data to EMC Centera. The sole reason for this exercise was verifying the expected size of data on the EMC Centera compared to NTFS.
The white paper from Symantec and EMC should be read for the basics!
Note: The tests were done at different days during the week in a production environment of a medium size corporation. The EV server is used during the day in terms of RAM and CPU for Vault Cache, Virtual Vault and manual archiving, which user's do regularly in larger quantities. Also the EMC Centera is used for other applications. This should be noted when comparing archiving speed. No true performance evaluation was done. As such, the information and data is provided as is without any guarantee. Please do note make any decisions based on this information without contacting your trusted EV support partner, Symantec and/or EMC.
We had the exiting environment enhanced by the following:
The EV partition and EMC Centera were configured like this:
|1. PST (1st import)||1. PST (2nd import)||2. PST (1st import)||2. PST (2nd import)||3. PST (1st import)||3. PST (2nd import)|
|PST content accumulated in GB||0.65||1.3||2.73||4.16||4.99||5.82|
|1st data import||Data import to NTFS|
|NTFS number of objects in NTFS partition||8248||13059||35114||48595||62001||71206|
|NTFS (Size on Disk) in GB||0.4||0.47||1.14||1.32||1.89||2.04|
|Duration of import in h:mm:ss||00:10:01||00:10:23||00:22:16||00:17:55||00:25:07||00:12:36|
|EV Total items (per VS reporting)||4890||9701||23184||36665||45789||55075|
|EV Total Size in GB (per VS reporting)||0.47||0.86||1.645||2.451||3.12||
|2nd data import||EV Centera Collection enabled, Centera in Performance Mode|
|Centera C-Clip Count||55||104||226||375||443||546|
|Centera User File Count||1658||3249||6171||9932||10822||12517|
|Centera used capacity in GB||0.43||0.85||2.00||2.00||3.00||
|Duration of import in h:mm:ss||0:11:26||0:12:08||0:24:16||0:25:14||0:25:54||0:21:11|
|3rd data import||EV Centera Collection disabled, Centera in Performance Mode|
|Centera C-Clip Count||4811||9622||23103||36161||45789||54994|
|Centera User File Count||3916||7830||16461||24848||30556||36018|
|Centera used capacity in GB||0.39||0.78||1.00||2.00||3.00||
|Duration of import in h:mm:ss||0:25:17||0:24:11||1:01:19||1:00:05||0:43:20||0:43:47|
|4th data import||EV Centera Collection disabled, Centera in Capacity Mode|
|Centera C-Clip Count||4811||9622||23104||36306||45790||54995|
|Centera User File Count||3917||7833||16468||24936||30568||36034|
|Centera used capacity in GB||0,39||0.78||1.00||2.00||3.00||3.00|
|Duration of import in h:mm:ss||0:24:07||0:24:14||1:01:56||0:59:23||0:45:30||0:43:38|
The data set isn't very large. Also we figured the EMC Centera is listing the size in MB up to one GB and just reports full rounded GB values afterwards. Hence I was including trend lines below to show an average value.
These results spring to my mind:
Please leave your comment below if you find this information useful. I am looking forward discussing these findings further.