VMware vSphere

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  • 1.  ESXi 7 or 8 OS Installation drive

    Posted Aug 02, 2023 05:54 AM

    I am planning to add a new ESXi server.  Trying to keep it as a 1U server so this means 8 drives.  Most likely 1.92TB drives. If I create a RAID 6 array with all drives, can I load the ESXi OS on the same RAID as the virtuals?  I have done this on a non-production system, but not sure if it is recommended.  Recommendations from VMware say it needs to be a 'persistent device'.  

    Any disadvantages to this?



  • 2.  RE: ESXi 7 or 8 OS Installation drive

    Posted Aug 02, 2023 06:32 AM

    Hello,


    In my opinion if the system foresees it for ESXi installation I would use what DELL calls "BOSS" card, or the equivalent (functionally speaking) marketed by other vendors with different names, I mean, I prefer to keep the operating system installation separate because I think it helps to avoid hassles in case of problems and give more freedom of action. USB "boot" devices (or whatever we want to call them)? After some unpleasant experiences, I haven't taken them into consideration for a long time.


    Surely other users will be able to bring you their equally valid considerations or suggestions.


    Regards,
    Ferdinando



  • 3.  RE: ESXi 7 or 8 OS Installation drive

    Posted Aug 02, 2023 07:29 AM

    Hi Kinnison,

    Agree with your opinion....usuallay drive on BOSS already configure with RAID 1.



  • 4.  RE: ESXi 7 or 8 OS Installation drive

    Posted Aug 02, 2023 02:27 PM

    Having your operating system on the same drives/array as your data is generally not a good idea.

    As others have commented before, a configuration that offers a RAID1  on smaller, inexpensive disks is your best bet. There's servers out there that offer drive slots on the rear of the chassis, so you don't lose any slots.