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<!-- keep this as a security measure: * Set ALLOWTOPICCHANGE = Main.TWikiAdminGroup,Main.LCGAdminGroup * Set ALLOWTOPICRENAME = Main.TWikiAdminGroup,Main.LCGAdminGroup #uncomment this if you want the page only be viewable by the internal people #* Set ALLOWTOPICVIEW = Main.TWikiAdminGroup,Main.LCGAdminGroup --> ---+ Hardware Card for Sun Thumper X4500 This is our old Storage node for dCache with 48 disks inside %TOC% ---++ Specifications What's inside the hardware, probably depending on what we're talking about. * Disk controller model. *6 x Marvell MV88SX6081 (8 ports)* * Network card model: *4 x Intel 82546EB + 1 Mellanox IB MT23108 (added later)* * Space that takes in the rack: *3U* * Max CPUs, Max Disks, Max Mem slots. *2 x AMD Opteron DualCore 290* * CDROM * Dual power supply: *yes* * Front / Back picture (maybe available online?) * Any other? ---+++ Power consumption (measured before and during the CPU/Disk tests) * Minimum: *1000 W* * Maximum *1130 W* ---+++ Ambiental details * External working temperature * Normal CPU/memory internal temperature * Air flow (cubic meters per hour) * Power disipation: *3856 BTU/h* * Noise (dB) ---++ Operations Interesting information like how to handle it, anything interesting which is not trivial. ---+++ How to get into the ILOM ---+++ Power up/down procedures ---+++ Commands to issue in an internal console ---+++ Firmware updates ---+++ Replacement of internal components ---++ Installation notes Instructions on how to set up a new machines that arrives, with things like: ---+++ BIOS settings ---+++ RAID configuration ---+++ Drivers required / kernel compatibility ---+++ Check firmware homogeneity with other machines in the cluster ---++ Benchmarks Information about benchmarks performed in the machine. ---+++ Disk benchmarks (i.e. Bonnie++) ---+++ CPU benchmarks (i.e. HepSpec06) ---+++ Network benchmarks (i.e. Iperf) ---++ Monitoring Instructions about monitoring the hardware ---+++ Power Consumption <h3>Raid Sanity</h3> I’ve gotten cron log from one of my servers today which says:<br /> /etc/cron.weekly/99-raid-check: WARNING: mismatch_cnt is not 0 on /dev/md0 <br /> Quick look at<br /> cat /proc/mdstat<br /> showed, that array is allright.<br /> This mismatch_cnt value is the value of the blocks, that are not synchronized between RAID drives. On my server the value was<br /> cat /sys/block/md0/md/mismatch_cnt<br /> and partition was md0, which is BOOT. SO, I quickly found the way to repair the problem by using<br /> echo repair >/sys/block/md0/md/sync_action<br /> watch cat /proc/mdstat<br /> and after repair is completed<br /> echo check >/sys/block/md0/md/sync_action<br /> watch cat /proc/mdstat<br /> After those operations the value of desynchronized blocks went to 0 again:<br /> cat /sys/block/md0/md/mismatch_cnt= ---+++ Other? ---++ Manuals External links to manuals ---++ Issues Information about issues found with this hardware, and how to deal with them ---+++ Issue1 ---+++ Issue2
HardwareCardForm
Model name
X4500
Manufacturer
Sun
Used for
dCache storage
Number in production
29
You install OS inside
Yes
First purchase date
Dec 2008
CPU performance in HS06
N/A
Disk performance in MB/s
400
Power consumption in Watts
1130
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Topic revision: r4 - 2011-04-18
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JasonTemple
LCGTier2
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