tsm:tsm_perf
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tsm:tsm_perf [2023/03/14 12:21] manu |
tsm:tsm_perf [2023/11/06 10:14] (current) manu |
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| ===== Spectrum Protect Server block size considerations ===== | ===== Spectrum Protect Server block size considerations ===== | ||
| - | DB block size used: 8kb | + | DB block size used: 8kb\\ |
| - | Storage pool DISK and FILE: reads and writes to storage pools predominantly in **256 KB** blocks | + | Storage pool DISK and FILE: reads and writes to storage pools predominantly in **256 KB** blocks\\ |
| The extents can range in size from 50 KB to 4 MB with an average of 256 KB. Any data smaller than 2 KB or data that cannot be deduplicated, such as encrypted or compressed, are not deduplicated. | The extents can range in size from 50 KB to 4 MB with an average of 256 KB. Any data smaller than 2 KB or data that cannot be deduplicated, such as encrypted or compressed, are not deduplicated. | ||
| - | By default, these files are 1 GB in size and are configurable using the parameter | + | S3: By default, these files are 1 GB in size and are configurable using the parameter |
| CloudTransferContainerSize server option (i.e. specifying in dsmserv.opt or using the “setopt” server command). These files are transferred to Access using S3 multipart-upload. With 1 GB default file size, the default part size that the file is broken up to is 100 MB. | CloudTransferContainerSize server option (i.e. specifying in dsmserv.opt or using the “setopt” server command). These files are transferred to Access using S3 multipart-upload. With 1 GB default file size, the default part size that the file is broken up to is 100 MB. | ||
| This value is configurable using the server parameter, CloudMinUploadPartSize. For restores, IBM Spectrum Protect does range reads in smaller sizes of 10 KB – 100KB | This value is configurable using the server parameter, CloudMinUploadPartSize. For restores, IBM Spectrum Protect does range reads in smaller sizes of 10 KB – 100KB | ||
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| |Other|Everything else that is not tracked already| | |Other|Everything else that is not tracked already| | ||
| - | http://tsm-symposium.oucs.ox.ac.uk/2005/papers/Finding%20Performance%20Bottlenecks%20in%20Tivoli%20Storage%20Manager%20Environments%20(Jarrett%20Potts).pdf | + | |
tsm/tsm_perf.1678792909.txt.gz · Last modified: 2023/03/14 12:21 by manu
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