Approximately how long does it take to migrate certain size of VOB from ClearCase to RTC?
Cathy Xu (390●5●15)
| asked Aug 14 '13, 4:14 a.m.
retagged Aug 20 '13, 10:35 a.m. by Ralph Earle (257●3●9)
I wonder if there is someone out there who would share some of your experience with data migration from ClearCase to RTC.
For example, we have a VOB which has 20 baselines, 20 components, each component has 2,000 files. Approximately how long are we looking at in terms of the migration? This will be used for an estimation of ClearCase downtime. By any chance you have done such migration, if you would share some of your experience that'll be greatly appreciated. Thank you very much. |
Accepted answer
Cathy,
the appendix of jazz article 50 has performance data on this, about 6 hours for 4000 files in 300 baselines with RTC 4.0. Obviously this depends on RTC version, OS of your sync client, network, ClearCase history etc. Safest to test with a copy of your VOB by choosing import of 10, 100, 300, ... files and measure the progressive import time. If this answers your question, please mark the answer as accepted. Best, Arne Cathy Xu selected this answer as the correct answer
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One other answer
Geoffrey Clemm (30.1k●3●30●35)
| answered Aug 19 '13, 12:06 a.m.
FORUM ADMINISTRATOR / FORUM MODERATOR / JAZZ DEVELOPER
The best rule of thumb is to allocate 1 second per distinct version being brought over (we get 0.5 seconds/version in testing, but network speed and server loading can slow you down). Very large files can also slow you down (add the byte transfer cost of very large files to the estimate).
Comments This is also very helpful to estimate different size of VOBs. Thank you very much Geoffrey.
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