IBM Security Verify

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  • 1.  Changing Virtual ISAM disk space

    Posted Tue October 27, 2020 06:09 PM
    If I allocate more disk space in an ISAM virtual appliance does ISAM automatically notice the change in the volume, and increase the filesystem to its size?
    If not, how can in increment the disk space in ISAM?

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    Joao Goncalves
    Pyxis, Lda.
    Sintra
    +351 91 721 4994
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  • 2.  RE: Changing Virtual ISAM disk space

    Posted Tue October 27, 2020 06:27 PM
    Joao,
     
    If you increase the size of the disk the appliance will not automatically increase the size of the partitions.  You need to do this yourself manually using something like gparted.  You just need to ensure that both partitions are of equal size.
     
     

    Scott A. Exton
    Senior Software Engineer
    Chief Programmer - IBM Security Verify Access

    IBM Master Inventor


    Phone: 61-7-5552-4008
    E-mail: scotte@au1.ibm.com
    1 Corporate Court
    Bundall, QLD 4217
    Australia
     
     





  • 3.  RE: Changing Virtual ISAM disk space

    Posted Wed October 28, 2020 06:00 AM
    Edited by Joao Goncalves Wed October 28, 2020 06:03 AM
    How can I do that in ISAM? I can login to ISAM using LIM or ssh. How can I change the partition size inside ISAM?
    In ISAM is there any tool like the one you refer where I can increase (or decrease) the size of the filesystems used internally in ISAM?

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    Joao Goncalves
    Pyxis, Lda.
    Sintra
    +351 91 721 4994
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  • 4.  RE: Changing Virtual ISAM disk space

    Posted Wed October 28, 2020 07:23 AM
    You can't do it from inside ISAM, but instead need to do it externally.  For example, gparted has a bootable ISO.  You can boot from this and then modify the size of the partitions.

    Sent from my iPad





  • 5.  RE: Changing Virtual ISAM disk space

    Posted Wed October 28, 2020 09:20 AM
    Another way to get a bigger disk is to take a snapshot from the current VM and then restore it to a new Virtual Appliance that has been created with a bigger disk.

    Jon.

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    Jon Harry
    Consulting IT Security Specialist
    IBM
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  • 6.  RE: Changing Virtual ISAM disk space

    IBM Champion
    Posted Wed October 28, 2020 10:02 AM

    Hi

     

    Another way to tackle this is via standardization and automation:

    • You could build your VM provisionning pipeline (if you have such thing) to always create ISAM VA vm disk storage of equal size (all 100 GB for instance thus granting ~50 GB per partition). On our ISAM Liberty appliances, it yields on average 66% un-used storage, and on our Web Proxy ISAM appliances 80%+ of free storage. Oh well : it turns out, we could have provisioned our Appliances with a lot less storage after all. But the truth is often with san storage technologies, your VM really only gets allocated space it consumes, and the maximum storage you allocate to it is really more like a policy (maximum allowed storage).
    • Ensure logs do not accumulate by externalizing them with rsyslog. This can be achieve for almost all system logs.
    • Regularly run purge process for any support file and configuration snapshots to be downloaded and saved (archived if need be) elsewhere out of your appliances.

    This way, you are pretty sure you will never have storage short issue.



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    Sylvain Gilbert
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  • 7.  RE: Changing Virtual ISAM disk space

    Posted Thu May 12, 2022 04:52 PM
    Hi Scott,

    We increased the disc on our VM and then used GParted to allocate the added disc.
    However, when using GParted we couldn´t change the two existing partitions, instead we could only create a new partition for the added disc.

    Will this also work fine or do we have to increase the two existing partitions for it to work? 

    Regards
    Dennis

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    Dennis Lideson
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  • 8.  RE: Changing Virtual ISAM disk space

    Posted Thu May 12, 2022 05:02 PM

    Dennis,

     

    You  need to increase the size of the existing partitions.  Creating a new partition will have no impact.

     

    Thanks.

     

     

    Scott A. Exton
    Senior Software Engineer
    Chief Programmer - IBM Security Verify Access

    IBM Master Inventor

    cid4122760825*<a href=image002.png@01D85F83.85516C50">

     

     

     






  • 9.  RE: Changing Virtual ISAM disk space

    Posted Fri May 13, 2022 09:04 AM
    Thank you Scott.
    I figured it out on how to increase the current two partitions.

    Firstly i needed to allocate the new disc to the "extended" file system part in order for me to be able to increase the existing partitions.
    However, i could only increase one of the partitions, the inactive one and not the active. What i then needed to do was to delete the inactive partition and then create a new one, then i could increase both the existing one and the new.

    Note: If you delete the inactive partition you will loose all the data on it, so if you have data on the inactive partition you don´t want to loose you need to create a new partition and copy the data to that new partition.

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    Dennis Lideson
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