Hi, Please set USEOPTBLK to *YES
https://www.ibm.com/support/pages/save-command-parameters-affect-performance USEOPTBLK(*YES) DTACPR(*DEV) COMPACT(*DEV) There isn't a way to set a specific blocks size, but with the above 256k block size should be used On Wed, Aug 2, 2023 at 12:25 PM Ribeiro Francisco <francisco7...@gmail.com> wrote: > Hello, > > Thanks for the tip. It seems that we cannot define the block size in the > BRMS software. Is there any way to specify it in the VTL structure? > > Em ter., 1 de ago. de 2023 às 19:08, QUADStor VTL Support < > vtlsupp...@quadstor.com> escreveu: > >> Hi, >> >> The correct block size and separating the ports for target and initiator >> traffic should be sufficient. If performance is preferred over space >> savings, non-dedupe pools will always give consistent performance and is >> not data dependent like the dedupe pools. >> For the disks/luns configured in the physical storage do not use thin >> provisioned luns. >> >> On Wed, Jul 26, 2023 at 11:08 PM Ribeiro Francisco < >> francisco7...@gmail.com> wrote: >> >>> Hi, >>> >>> After adjusting the block size parameter in my tar command I was able to >>> get the desired speeds. Is there any setting that we should adjust in the >>> quadstor configure? >>> >>> Kind regars >>> >>> A terça, 25/07/2023, 18:01, Ribeiro Francisco <francisco7...@gmail.com> >>> escreveu: >>> >>>> Hello, >>>> >>>> In IBMi we are using BRMS. In Linux we're using the tar command without >>>> z option. >>>> We are going to try to modify the port mode and I'll report you back. >>>> >>>> Kind regards >>>> >>>> >>>> A domingo, 23/07/2023, 19:01, QUADStor VTL Support < >>>> vtlsupp...@quadstor.com> escreveu: >>>> >>>>> Hi, >>>>> >>>>> There are two VTL HBA ports. One of them should be set to initiator >>>>> mode while the other should be set to target-mode. >>>>> This will help segregate tape and disk transfers. >>>>> The mode can be changed from the GUI "Access Management" page. >>>>> Under "Target Port Configuration" for one WWPN click on Modify and >>>>> select Initiator and for the other WWPN select "Target" >>>>> The switch zoning can be changed appropriately to allow access for the >>>>> hosts to only the target mode WWPN. >>>>> >>>>> From one of the drive statistics >>>>> >>>>> write_bytes_processed: 1335859200 >>>>> write_cmds: 260910 >>>>> >>>>> This is an average of 5120 bytes per command which is very small. >>>>> There were other backups but it looks like the system was restarted >>>>> and this was the only backup for which we have stats maintained. >>>>> Which backup application is used to copy files from the linux >>>>> partition ? Is LTFS being used ? >>>>> >>>>> >>>>> On Sat, Jul 22, 2023 at 9:03 AM Ribeiro Francisco < >>>>> francisco7...@gmail.com> wrote: >>>>> >>>>>> Hello, >>>>>> >>>>>> I've deleted my previous reply since you asked me to send the logs to >>>>>> that specific email. >>>>>> Logs were sent. >>>>>> Also, yes, the physical tape is connected to the same partition. >>>>>> >>>>>> Kind regards >>>>>> >>>>>> >>>>>> A sexta-feira, 21 de julho de 2023 à(s) 15:54:22 UTC+1, quadstor >>>>>> escreveu: >>>>>> >>>>>>> Hi, >>>>>>> >>>>>>> Please send the diagnostic logs (HTML UI -> System Page -> Run >>>>>>> Diagnostics -> Submit). You can send the logs to >>>>>>> vtlsu...@quadstor.com >>>>>>> >>>>>>> Is the backup to physical tape connected to the same partition ? >>>>>>> What is the backup speed to physical tape ? >>>>>>> >>>>>>> >>>>>>> On Fri, Jul 21, 2023 at 3:52 PM Ribeiro Francisco < >>>>>>> franci...@gmail.com> wrote: >>>>>>> >>>>>>>> Hello, >>>>>>>> >>>>>>>> We have the following scenario: >>>>>>>> A Lenovo Server with 64GB Memory and an Intel(R) Xeon(R) Silver >>>>>>>> 4314 CPU @ 2.40GHz processor with a fibre channel connection to a SAN >>>>>>>> switch, through a QLogic adapter. >>>>>>>> An IBM Power 10 connected to the same SAN switch, with a linux >>>>>>>> partition to test the backup performance >>>>>>>> The Lenovo VTL server as a LUN created in an IBM storage (SSD >>>>>>>> disks). The linux partition also have SSD disks. >>>>>>>> If we write in that LUN using the VTL, we have no performance >>>>>>>> issues. If we write in the linux IBM partition disks using the linux >>>>>>>> partition we do not have any performance problem. But if we try to copy >>>>>>>> files to the VTL using the linux partition (or even the IBMi), it takes >>>>>>>> twice the time to do the same backup to a real Tape. Is it normal? We >>>>>>>> are >>>>>>>> not using compression or deduplication. >>>>>>>> >>>>>>>> Kind Regards >>>>>>>> >>>>>>>> -- >>>>>>>> You received this message because you are subscribed to the Google >>>>>>>> Groups "QUADStor VTL" group. >>>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>>> send an email to quadstor-vtl...@googlegroups.com. >>>>>>>> To view this discussion on the web visit >>>>>>>> https://groups.google.com/d/msgid/quadstor-vtl/c656564d-0180-421f-bc2d-4b69c143f4c8n%40googlegroups.com >>>>>>>> <https://groups.google.com/d/msgid/quadstor-vtl/c656564d-0180-421f-bc2d-4b69c143f4c8n%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>>>>> . >>>>>>>> >>>>>>> -- >>>>>> You received this message because you are subscribed to the Google >>>>>> Groups "QUADStor VTL" group. >>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>> send an email to quadstor-vtl+unsubscr...@googlegroups.com. >>>>>> To view this discussion on the web visit >>>>>> https://groups.google.com/d/msgid/quadstor-vtl/97f65d0d-72f6-497a-9ee1-63cf3b0f7e41n%40googlegroups.com >>>>>> <https://groups.google.com/d/msgid/quadstor-vtl/97f65d0d-72f6-497a-9ee1-63cf3b0f7e41n%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>>> . >>>>>> >>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "QUADStor VTL" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to quadstor-vtl+unsubscr...@googlegroups.com. >>>>> To view this discussion on the web visit >>>>> https://groups.google.com/d/msgid/quadstor-vtl/CAPEgkt5v0%2BZ7n9MCOpUtDFL_CgEUSLOnDdy2F%3DeD8qGk-AVaEA%40mail.gmail.com >>>>> <https://groups.google.com/d/msgid/quadstor-vtl/CAPEgkt5v0%2BZ7n9MCOpUtDFL_CgEUSLOnDdy2F%3DeD8qGk-AVaEA%40mail.gmail.com?utm_medium=email&utm_source=footer> >>>>> . >>>>> >>>> -- >>> You received this message because you are subscribed to the Google >>> Groups "QUADStor VTL" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to quadstor-vtl+unsubscr...@googlegroups.com. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/quadstor-vtl/CAD5ivsXDNotwpmPo0Wsi%3DfDLokwtyxu3u1cPmoWJ7aFxHmaMkg%40mail.gmail.com >>> <https://groups.google.com/d/msgid/quadstor-vtl/CAD5ivsXDNotwpmPo0Wsi%3DfDLokwtyxu3u1cPmoWJ7aFxHmaMkg%40mail.gmail.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- >> You received this message because you are subscribed to the Google Groups >> "QUADStor VTL" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to quadstor-vtl+unsubscr...@googlegroups.com. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/quadstor-vtl/CAPEgkt7sAdfFRY4kbU%2BFgFxDXt7OxniEem3qZa_6viHzKxtZ-w%40mail.gmail.com >> <https://groups.google.com/d/msgid/quadstor-vtl/CAPEgkt7sAdfFRY4kbU%2BFgFxDXt7OxniEem3qZa_6viHzKxtZ-w%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> > -- > You received this message because you are subscribed to the Google Groups > "QUADStor VTL" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to quadstor-vtl+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/quadstor-vtl/CAD5ivsXRC_C2r2Wkg%2BaVUDRtw4zr2qZWYfZtJqiqWVL1dvkOfA%40mail.gmail.com > <https://groups.google.com/d/msgid/quadstor-vtl/CAD5ivsXRC_C2r2Wkg%2BaVUDRtw4zr2qZWYfZtJqiqWVL1dvkOfA%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "QUADStor VTL" group. 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