Hi Josh -  Yep the drives are the same model on both servers.   The server crashed over the weekend and Dell is now telling us that there is an issue with the Liteon SSD’s when using RAID. The tech said a firmware update is due, sometime in April,  it is being worked on now.  I'm stunned that Dell didn't send a an alert out to everyone that purchased the SSD's?  And, then also, I'm stunned that the tech thought waiting for a firmware update that is weeks out is an acceptable solution for a production server. Crazy.    - Kim
Hi - We are running PowerEdge R530 with a H730p controller with 4 SSD drives configured as Raid 5.  We are getting awful iops.  Trying to figure out what to look at?  $ dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync16384+0 records in16384+0 records out1073741824 bytes (1.1 GB) copied, 73.7852 s, 14.6 MB/s  The perccli shows:  perccli /c0 showGenerating detailed summary of the adapter, it may take a while to complete. Controller = 0Status = SuccessDescription = None Product Name = PERC H730P MiniSerial Number = 4AB01IRSAS Address = 5b083fe0dae04400PCI Address = 00:01:00:00System Time = 03/05/2015 10:07:40Mfg. Date = 10/14/14Controller Time = 03/05/2015 19:05:51FW Package Build = 25.2.1.0037BIOS Version = 6.18.02.0_4.16.07.00_0x06070400FW Version = 4.240.00-3615Driver Name = megaraid_sasDriver Version = 06.803.02.00-rc1Current Personality = RAID-ModeVendor Id = 0x1000Device Id = 0x5DSubVendor Id = 0x1028SubDevice Id = 0x1F47Host Interface = PCIEDevice Interface = SAS-12GBus Number = 1Device Number = 0Function Number = 0Drive Groups = 1 TOPOLOGY :======== -------------------------------------------------------------------------DG Arr Row EID:Slot DID Type State BT Size PDC PI SED DS3 FSpace------------------------------------------------------------------------- 0 - - - - RAID5 Optl N 1.0810 TB dflt N N dflt N 0 0 - - - RAID5 Optl N 1.0810 TB dflt N N dflt N 0 0 0 32:0 0 DRIVE Onln N 372.0 GB dflt N N dflt - 0 0 1 32:1 1 DRIVE Onln N 372.0 GB dflt N N dflt - 0 0 2 32:2 2 DRIVE Onln N 372.0 GB dflt N N dflt - 0 0 3 32:3 3 DRIVE Onln N 372.0 GB dflt N N dflt -------------------------------------------------------------------------- DG=Disk Group Index|Arr=Array Index|Row=Row Index|EID=Enclosure Device IDDID=Device ID|Type=Drive Type|Onln=Online|Rbld=Rebuild|Dgrd=DegradedPdgd=Partially degraded|Offln=Offline|BT=Background Task ActivePDC=PD Cache|PI=Protection Info|SED=Self Encrypting Drive|Frgn=ForeignDS3=Dimmer Switch 3|dflt=Default|Msng=Missing|FSpace=Free Space Present Virtual Drives = 1 VD LIST :======= ----------------------------------------------------------------DG/VD TYPE State Access Consist Cache sCC Size Name----------------------------------------------------------------0/0 RAID5 Optl RW Yes RWBD - 1.0810 TB SaveServer---------------------------------------------------------------- Cac=CacheCade|Rec=Recovery|OfLn=OffLine|Pdgd=Partially Degraded|dgrd=DegradedOptl=Optimal|RO=Read Only|RW=Read Write|B=Blocked|Consist=Consistent|R=Read Ahead Always|NR=No Read Ahead|WB=WriteBack|AWB=Always WriteBack|WT=WriteThrough|C=Cached IO|D=Direct IO|sCC=ScheduledCheck Consistency Physical Drives = 4 PD LIST :======= ---------------------------------------------------------------------------EID:Slt DID State DG Size Intf Med SED PI SeSz Model Sp---------------------------------------------------------------------------32:0 0 Onln 0 372.0 GB SATA SSD N N 512B LITEON IT ECE-400NAS U32:1 1 Onln 0 372.0 GB SATA SSD N N 512B LITEON IT ECE-400NAS U32:2 2 Onln 0 372.0 GB SATA SSD N N 512B LITEON IT ECE-400NAS U32:3 3 Onln 0 372.0 GB SATA SSD N N 512B LITEON IT ECE-400NAS U--------------------------------------------------------------------------- EID-Enclosure Device ID|Slt-Slot No.|DID-Device ID|DG-DriveGroupDHS-Dedicated Hot Spare|UGood-Unconfigured Good|GHS-Global HotspareUBad-Unconfigured Bad|Onln-Online|Offln-Offline|Intf-InterfaceMed-Media Type|SED-Self Encryptive Drive|PI-Protection InfoSeSz-Sector Size|Sp-Spun|U-Up|D-Down|T-Transition|F-ForeignUGUnsp-Unsupported|UGShld-UnConfigured shielded|HSPShld-Hotspare shieldedCFShld-Configured shielded BBU_Info :======== ----------------------------------------------------------------------Model State RetentionTime Temp Mode MfgDate Next Learn----------------------------------------------------------------------BBU Optimal 0 hour(s) 28C - 2011/07/18 2015/04/10 01:48:28----------------------------------------------------------------------  Thanks for any ideas.  - Kim
DELL Slow IOPS on H730p controller with 4 SSD configured Raid 5