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--- tsm:tsm_perf [2021/01/18 16:25]
manu [Categories]
+++ tsm:tsm_perf [2023/11/06 10:14] (current)
manu
@@ Line 3: / Line 3: @@
 Are you in the best practice for the server ?
   * have a look on Spectum Blueprint (on google)
+===== Spectrum Protect Server block size considerations =====
+DB block size used: 8kb\\
+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.
+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.
+This value is configurable using the server parameter, CloudMinUploadPartSize. For restores, IBM Spectrum Protect does range reads in smaller sizes of 10 KB – 100KB
 ===== Check performances on Spectrum Protect Server =====
@@ Line 162: / Line 172: @@
 |EndTxn Verb|Server transaction commit and tape synchronization (points to the IBM Spectrum Protect server)|
 |Other|Everything else that is not tracked already|

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