They are: [root at r1k1 ~] # hdparm -I /dev/sda /dev/sda: ATA device, with non-removable media Model Number: MB4000GCWDC Serial Number: S1Z06RW9 Firmware Revision: HPGD Transport: Serial, SATA Rev 3.0 Thanks, Kelly On 2016-05-25, 1:21 PM, "centos-bounces at centos.org on behalf of m.roth at 5-cent.us" <centos-bounces at centos.org on behalf of m.roth at 5-cent.us> wrote: >Kelly Lesperance wrote: >> I’ve posted this on the forums at >> https://www.centos.org/forums/viewtopic.php?f=47&t=57926&p=244614#p244614 >> - posting to the list in the hopes of getting more eyeballs on it. >> >> We have a cluster of 23 HP DL380p Gen8 hosts running Kafka. Basic specs: >> >> 2x E5-2650 >> 128 GB RAM >> 12 x 4 TB 7200 RPM SATA drives connected to an HP H220 HBA >> Dual port 10 GB NIC >> >> The drives are configured as one large RAID-10 volume with mdadm, >> filesystem is XFS. The OS is not installed on the drive - we PXE boot a >> CentOS image we've built with minimal packages installed, and do the OS >> configuration via puppet. Originally, the hosts were running CentOS 6.5, >> with Kafka 0.8.1, without issue. We recently upgraded to CentOS 7.2 and >> Kafka 0.9, and that's when the trouble started. ><SNIP> >Really stupid question: are the drives in that the ones that came with the >unit? > > mark, who, a few years ago, found serious issues with green drives in a > server.... > >_______________________________________________ >CentOS mailing list >CentOS at centos.org >https://lists.centos.org/mailman/listinfo/centos