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ROGER ERIKSSON

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RE: Hyperswap Cluster System as backend storage for SVC cluster?

Posted By ROGER ERIKSSON Fri January 19, 2024 02:25 AM
Found In Egroup: Primary Storage \ view thread
Hi, FlashSystem hyperswap volumes can not be mapped to svc, multiple io group and so in, as many others have said svc must be mapped to the scsi WWPNs in fs9500, otherwise it won't work. For fs9500 the svc is just another Linux host ------------------------------ ROGER ERIKSSON --- ...

RE: Migration from V7000 Gen1 to FS5200

Posted By ROGER ERIKSSON Tue December 19, 2023 02:46 AM
Found In Egroup: Primary Storage \ view thread
https://www.redbooks.ibm.com/abstracts/sg248470.html?Open a good source of information in any block storage migration as other said, make sure zoning is done between physical WWPN and physical WWPN (FS5200 have 3 WWPN / port only physical WWPN will work) Mvh Roger Eriksson ...

RE: Q: Storage Virtualize Policy Based HA scenario

Posted By ROGER ERIKSSON Wed October 18, 2023 02:37 AM
Found In Egroup: Primary Storage \ view thread
The site that loose the quorum race will get it's replicated volumes offline, but all single site volumes will continue to serve their hosts. ------------------------------ ROGER ERIKSSON ------------------------------

RE: IBM Storage FlashSystem Sustainability Webinar

Posted By ROGER ERIKSSON Mon August 07, 2023 07:24 AM
Found In Egroup: Primary Storage \ view thread
Rockstar quality webinar Audrey and Andy !!! ------------------------------ ROGER ERIKSSON ------------------------------

RE: How to migrate DS8000 to FS7300?

Posted By ROGER ERIKSSON Mon March 13, 2023 02:57 AM
Found In Egroup: Primary Storage \ view thread
Hi, It's also a question what the expectations are. And what host types they use. A good start point is to check the redbook for migrations, https://www.redbooks.ibm.com/abstracts/sg248470.html?Open ------------- Roger Eriksson IBM Partner Technical Specialist Storage IBM Sweden, Kistagången 6, 16492 ...

RE: FlashSystem A9000 Clones of the Volumes

Posted By ROGER ERIKSSON Wed June 16, 2021 02:31 AM
Found In Egroup: Primary Storage \ view thread
Hi, a. any time before migrationb. no, it will only keep the data blocks from the time you did vol-copy cmd, so all data-blocks that was owned by vol when vol-copy was issued, will also be owned by new vol, when a data block on original vol chnages afterwards, the old data-block will only be owned by ...

RE: FlashSystem A9000 Clones of the Volumes

Posted By ROGER ERIKSSON Tue June 15, 2021 11:02 AM
Found In Egroup: Primary Storage \ view thread
Hi Sudhir, The A9k is a fully virtualized system, so no vopy will occur, let me try to explain why. you dont have to wait for the copy, as you say the vol-copy cmd create a new set of pointers to the data blocks,ex.So vol1 owns data block 123, when vol-copy is issues a vol2 is created with same pointers ...

RE: Migration form Storwize V5000 to FlashSystem 5030 & FlashCopy

Posted By ROGER ERIKSSON Tue June 15, 2021 02:40 AM
Found In Egroup: Primary Storage \ view thread
for possible migration options guidance, see Redbook "Block Storage Migration in Open Environments"http://www.redbooks.ibm.com/abstracts/sg248470.html?Open Roger ErikssonIBM Nordic Lab Services Storage/IBM Technical Sales StoragePhone: 46-70-7933518E-mail: roger_eriksson@se.ibm.com Nordic Spectrum ...

RE: FlashSystem A9000 Clones of the Volumes

Posted By ROGER ERIKSSON Wed June 09, 2021 02:47 AM
Found In Egroup: Primary Storage \ view thread
Hi,it is a Vol-Copy cmd, which will be a full copy=Clone, the full vol copy is instant, the copy happen in background, https://www.ibm.com/docs/en/flashsystem-a9000/12.2.1?topic=snapshots-full-volume-copy Roger ErikssonSystems Lab Services EMEA/Senior Storage ConsultantPhone: 46-70-7933518E-mail: ...

RE: Does the 3 year Expert Care Basic for FS5200 includes GTMS or Firmware upgrade

Posted By ROGER ERIKSSON Mon June 07, 2021 02:16 AM
Found In Egroup: Primary Storage \ view thread
No it does not Include code updates Ciao, Roger Eriksson Sent from mobile phone.S?vida annat inte anges ovan: / Unless stated otherwise above: IBM Svenska AB Organisationsnummer: 556026-6883 Adress: 164 92 Stockholm

RE: question about I/O capacity

Posted By ROGER ERIKSSON Wed February 17, 2021 07:13 AM
Found In Egroup: Primary Storage \ view thread
this is from the Redbook, as you can see it states that each SSD is capable of 20000 iops, and probably an FCM is capable of 30000 or more, that makes these calculations in most cases irrelevant nowadays ------------------------------ ROGER ERIKSSON ------------------------------

RE: Hardware Interoperability Matrix for SAN Volume Controller Software Levels

Posted By ROGER ERIKSSON Tue December 01, 2020 03:27 AM
Found In Egroup: Primary Storage \ view thread

RE: NMVe Scalability in Competitor storage Model

Posted By ROGER ERIKSSON Fri November 20, 2020 02:58 AM
Found In Egroup: Primary Storage \ view thread
Hi, I dont know of the competitors, but our Master inventor Barry Whyte told, that its pointless to scale above 24x NVMe drives as the rest of the box cant utilize their fully performance, if capacity you are after then scale with SAS enclosures and SSD and use Easy Tier to get the hottest data onto ...

RE: DRP Space Savings

Posted By ROGER ERIKSSON Thu November 19, 2020 03:06 AM
Found In Egroup: Primary Storage \ view thread
It’s impossible to know, it all depends on the data you dem at it. To have an idea ibm have a tool to run on your servers to estimate how much you will get, tool is called comprestimator (google for it), that is for compression. If you wanna test how much dedup you will also get, use another tool ...

RE: NVMe-FC?

Posted By ROGER ERIKSSON Tue November 10, 2020 03:32 AM
Found In Egroup: Primary Storage \ view thread
Hi, we have done some test 1. make sure the host HBA have NVMe protocol enabled in its firmware, might even need an update of firmware 2. most likely you will not see any huge difference in performance between NVMe and SCSI protocol on the IBM FlashSystem, as speed of light is speed of light. 3. The ...

RE: volume migration between IO groups

Posted By ROGER ERIKSSON Mon October 05, 2020 10:26 AM
Found In Egroup: Primary Storage \ view thread
Hi Many of the possible migrations options is covered in the excellent ;-) http://www.redbooks.ibm.com/abstracts/sg248470.html?Open ------------------------------ ROGER ERIKSSON ------------------------------