> On Apr 10, 2017, at 2:39 PM, Machine Man <gearbo...@outlook.com> wrote: > > Thank you. I am sending it back to where we purchased it from. I thought > these were no longer avail, but the distributor still listed them and had in > stock. > I was hesitant to purchase, but I am in desperate need for a ZIL.
ZeusRAMs have been EOL for a year or more. AIUI, the parts are no longer available to build them. We do see better performance from the modern, enterprise-class, 12G SAS parts from HGST and Toshiba. Unfortunately, they are priced by $/GB and not $/latency, so the smaller capacity (GB) drives are also slower. — richard > > > From: Richard Elling <richard.ell...@richardelling.com> > Sent: Monday, April 10, 2017 4:15:32 PM > To: Machine Man > Cc: omnios-discuss@lists.omniti.com > Subject: Re: [OmniOS-discuss] ZeusRAM - predictive failure > > >> On Apr 10, 2017, at 1:00 PM, Machine Man <gearbo...@outlook.com >> <mailto:gearbo...@outlook.com>> wrote: >> >> Today I received one of the ZeusRAM that I ordered, both brand new. I was >> struggling to find SAS SSD drives that were available in my price range as I >> desperately need to add a ZIL. >> I decided to order ZeusRAM since they had one in stock and figured I'll add >> it while waiting for the other one as they are really should not be prone to >> failure based on design. I have not used them and would normally just prefer >> to use regular SSD drives. >> >> Slotted ZeusRAM in and it began to rapidly blink the same as the disks that >> are currently in the pool on that backplain. Running the command format >> would never return with a list of disks. I left it for about 15 min and >> pulled it since it says on the disk that it can take up to 10 min for the >> caps. I could see there is an amber and green LED on the drive itself >> blinking, even when removed. >> I slotted it back in and the disk was then available. After a few min the >> fault light cam on and the disk was unavailable due to the following: >> >> Fault class : fault.io.disk.predictive-failure > > This occurs when the drive responds to an I/O and indicates a predictive > failure or > the periodic query for drives sees a predicted failure. It is the drive > telling the OS that > the drive thinks it will fail. There is nothing you can do on the OS to “fix” > this. > > It is possible that HGST (nee STEC) can help with further diagnosis using the > vendor-specific > log pages. Several years ago, STEC helped us with root cause of failing > ultracapacitor in a drive. > AFAIK, there is no publicly available decoder for those log pages. > — richard > > >> Affects : >> dev:///:devid=id1,sd@n5000a720300b3d57//pci@0,0/pci8086,340e@7/pci1000,3040@0/iport@f0/disk@w5000a72a300b3d57,0 >> >> <dev:///:devid=id1,sd@n5000a720300b3d57//pci@0,0/pci8086,340e@7/pci1000,3040@0/iport@f0/disk@w5000a72a300b3d57,0> >> faulted and taken out of service >> FRU : "Slot 09" >> (hc://:product-id=LSI-SAS2X36:server-id=:chassis-id=50030480178cf57f:serial=STM000****:part=STEC-ZeusRAM:revision=C025/ses-enclosure=1/bay=8/disk=0 >> >> <hc://:product-id=LSI-SAS2X36:server-id=:chassis-id=50030480178cf57f:serial=STM000****:part=STEC-ZeusRAM:revision=C025/ses-enclosure=1/bay=8/disk=0>) >> faulty >> Description : SMART health-monitoring firmware reported that a disk >> failure is imminent. >> >> >> I cleared the fault and the drive was then usable again for a few min same >> thing happened. Eventually the amber light on the disk itself (not the >> enclosure disk light) no longer blinked and the disks was online for quite >> some time before the alert above reappeared. >> >> >> === START OF INFORMATION SECTION === >> Vendor: STEC >> Product: ZeusRAM >> Revision: C025 >> Compliance: SPC-4 >> User Capacity: 8,000,000,000 bytes [8.00 GB] >> Logical block size: 512 bytes >> Rotation Rate: Solid State Device >> Form Factor: 3.5 inches >> Logical Unit id: 0x5000a720300b3d57 >> Serial number: STM000****** >> Device type: disk >> Transport protocol: SAS (SPL-3) >> Local Time is: Mon Apr 10 19:17:23 2017 UTC >> SMART support is: Available - device has SMART capability. >> SMART support is: Enabled >> Temperature Warning: Enabled >> === START OF READ SMART DATA SECTION === >> SMART Health Status: OK >> Current Drive Temperature: 40 C >> Drive Trip Temperature: 80 C >> Elements in grown defect list: 0 >> Vendor (Seagate) cache information >> Blocks sent to initiator = 0 >> Blocks sent to initiator = 0 >> Error counter log: >> Errors Corrected by Total Correction Gigabytes >> Total >> ECC rereads/ errors algorithm processed >> uncorrected >> fast | delayed rewrites corrected invocations [10^9 bytes] >> errors >> read: 0 0 0 0 0 21.323 >> 0 >> write: 0 0 0 0 0 83.809 >> 0 >> Non-medium error count: 0 >> >> >> >> Is there anything special that should be done for ZeusRAM in sd.conf? Its a >> node install and both nodes can see all the drives. I don't see any smart >> errors listed, but running fmadm it will show the disk as faulty due to >> predictive failure. >> OmniOS r20 all patches applied. >> >> >> thanks, >> _______________________________________________ >> OmniOS-discuss mailing list >> OmniOS-discuss@lists.omniti.com <mailto:OmniOS-discuss@lists.omniti.com> >> http://lists.omniti.com/mailman/listinfo/omnios-discuss >> <http://lists.omniti.com/mailman/listinfo/omnios-discuss> > -- > > richard.ell...@richardelling.com <mailto:richard.ell...@richardelling.com> > +1-760-896-4422
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