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- How to get JBOD on HP Z800

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07-22-2020 12:31 AM
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07-22-2020 04:19 PM
i recommend you take the time to read the documentation that HP provides for the z800 such as the user manual and the service manual, they can be downloaded from the z800 section on the HP site
next, use this forums "SEARCH" feature it's most likely your question(s) have already been asked/answered allready several times
your statement that the z800 only supports 2TB or smaller disks is incorrect, the z800 can only BOOT or access non booting 2TB or smaller, drives under win 7/XP however using GPT format that is part of win 8.1/10 you can use 4 TB non booting drives
the z800 has 3 different storage controllers, two normal SATA 3GBps ports
five Intel "SCU" SATA 3GBps ports
seven LSI SATA/SAS 3GBps ports
the LSI ports are usually used by high end applications as the LSI driver is a well understood driver that is available under most available operating systems, this saves the software company much time in support/upgrades as each version of their program uses the same driver code
there is no speed difference between the SATA, Intel "SCU" and LSI ports on the z800 so it's recommended for windows users to DISABLE the onboard LSI boot rom, which will speed up the z800 boot times and to also disable the onboard Nic(s) boot rom, again this will speed up the z800 boot time
note that disabling the z800 boot rem is not the same as disabling the LSI/Nic device, disabling a device removes it from the OS completely, disabling the boot rom simply turns off the devices ability to boot a OS, the device itself will still be seen by the operating system
changing the CORRECT RAID/AHCI setting to IDE is a incorrect setting, this is the SLOWEST setting and will limit drive size for non booting drives to 2TB or smaller
the RAID bios INCLUDES the AHCI driver, which is why it should always be left enabled
the z800 DEFAULTS to JBOD, so unless you actually enter the LSI raid bios from within the z800's bios and configure a raid array all drives will default to JBOD on the LSI/SATA controllers
last, if you are doing video related work i strongly recommend a add in Raid/JBOD card, like the ASR-6805T, this card runs on the pci-e 2.0 bus (which the z800 has) and allows up to 8 SATA/SAS ^GBps drives to be attached. the sustained I/O of this card is much much faster than the crippled onboard LSI 9240 style controller, and again faster than the intel onboard 3GBps ports
you might also want to install 24GB ram or more depending on your application needs
07-22-2020 04:19 PM
i recommend you take the time to read the documentation that HP provides for the z800 such as the user manual and the service manual, they can be downloaded from the z800 section on the HP site
next, use this forums "SEARCH" feature it's most likely your question(s) have already been asked/answered allready several times
your statement that the z800 only supports 2TB or smaller disks is incorrect, the z800 can only BOOT or access non booting 2TB or smaller, drives under win 7/XP however using GPT format that is part of win 8.1/10 you can use 4 TB non booting drives
the z800 has 3 different storage controllers, two normal SATA 3GBps ports
five Intel "SCU" SATA 3GBps ports
seven LSI SATA/SAS 3GBps ports
the LSI ports are usually used by high end applications as the LSI driver is a well understood driver that is available under most available operating systems, this saves the software company much time in support/upgrades as each version of their program uses the same driver code
there is no speed difference between the SATA, Intel "SCU" and LSI ports on the z800 so it's recommended for windows users to DISABLE the onboard LSI boot rom, which will speed up the z800 boot times and to also disable the onboard Nic(s) boot rom, again this will speed up the z800 boot time
note that disabling the z800 boot rem is not the same as disabling the LSI/Nic device, disabling a device removes it from the OS completely, disabling the boot rom simply turns off the devices ability to boot a OS, the device itself will still be seen by the operating system
changing the CORRECT RAID/AHCI setting to IDE is a incorrect setting, this is the SLOWEST setting and will limit drive size for non booting drives to 2TB or smaller
the RAID bios INCLUDES the AHCI driver, which is why it should always be left enabled
the z800 DEFAULTS to JBOD, so unless you actually enter the LSI raid bios from within the z800's bios and configure a raid array all drives will default to JBOD on the LSI/SATA controllers
last, if you are doing video related work i strongly recommend a add in Raid/JBOD card, like the ASR-6805T, this card runs on the pci-e 2.0 bus (which the z800 has) and allows up to 8 SATA/SAS ^GBps drives to be attached. the sustained I/O of this card is much much faster than the crippled onboard LSI 9240 style controller, and again faster than the intel onboard 3GBps ports
you might also want to install 24GB ram or more depending on your application needs
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