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...low host: Name PERC H310 Mini (Embedded) Firmware Version 20.13.1-0002 Cache Memory Size 0 MB Slow host: Name PERC H310 Mini (Embedded) Firmware Version 20.13.3-0001 Cache Memory Size 0 MB Slow Host: Name PERC H710 Mini (Embedded) Firmware Version 21.3.5-0002 Cache Memory Size 512 MB Fast Host Perc H730 Cache Memory Size 1GB On Mon, Feb 26, 2018 at 9:42 AM, Alvin Starr <alvin at netvel.net> wrote: > I would be really supprised if the problem was related to Idrac. > > The Idrac processor is a stand alone cpu with its own nic and runs > independent of the main CPU. > > That...

...Version 20.13.1-0002 > Cache Memory Size 0 MB > Slow host: > Name PERC H310 Mini (Embedded) > Firmware Version 20.13.3-0001 Cache Memory Size 0 MB > Slow Host: > Name PERC H710 Mini (Embedded) > Firmware Version 21.3.5-0002 > Cache Memory Size 512 MB > Fast Host > Perc H730 > Cache Memory Size 1GB > > On Mon, Feb 26, 2018 at 9:42 AM, Alvin Starr <alvin at netvel.net> wrote: > >> I would be really supprised if the problem was related to Idrac. >> >> The Idrac processor is a stand alone cpu with its own nic and runs >> independe...

...ollers will work with either SAS or SATA drives and you can purchase the appropriate breakout cables for connecting the controller to individual drives. Since you're planning on using 3TB+ drives that are likely 4k native sector, I'd recommend a newer model controller like the Dell PERC H730 (LSI MegaRAID SAS 9361-8i) for RAID5/6 or a PERC H330 (LSI MegaRAID SAS 9341-8i) for RAID 0/1/10.

...ry Size 0 MB >> Slow host: >> Name PERC H310 Mini (Embedded) >> Firmware Version 20.13.3-0001 Cache Memory Size 0 MB >> Slow Host: >> Name PERC H710 Mini (Embedded) >> Firmware Version 21.3.5-0002 >> Cache Memory Size 512 MB >> Fast Host >> Perc H730 >> Cache Memory Size 1GB >> >> On Mon, Feb 26, 2018 at 9:42 AM, Alvin Starr <alvin at netvel.net> wrote: >> >>> I would be really supprised if the problem was related to Idrac. >>> >>> The Idrac processor is a stand alone cpu with its own nic...

...h either > SAS or SATA drives and you can purchase the appropriate breakout > cables for connecting the controller to individual drives. Since > you're planning on using 3TB+ drives that are likely 4k native sector, > I'd recommend a newer model controller like the Dell PERC H730 (LSI > MegaRAID SAS 9361-8i) for RAID5/6 or a PERC H330 (LSI MegaRAID SAS > 9341-8i) for RAID 0/1/10. > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos

Hello list. The next days we are going to install Centos 7 on a new server, with 4*3Tb sata hdd as raid-5. We will use the graphical interface to install and set up raid. Do I have to consider anything before installation, because the disks are very large? Does the graphical use the parted to set/format the raid? I hope the above make sense. Thank you in advance. Nikos

I would be really supprised if the problem was related to Idrac. The Idrac processor is a stand alone cpu with its own nic and runs independent of the main CPU. That being said it does have visibility into the whole system. try using dmidecode to compare the systems and take a close look at the raid controllers and what size and form of cache they have. On 02/26/2018 11:34 AM, Ryan

I've tested about 12 different Dell servers. Ony a couple of them have Idrac express and all the others have Idrac Enterprise. All the boxes with Enterprise perform poorly and the couple that have express perform well. I use the disks in raid mode on all of them. I've tried a few non-Dell boxes and they all perform well even though some of them are very old. I've also tried