Billeuze,   With the drive showing as an online Predicted Failure, you will need to force that drive offline (page 25 here). prior to removal. After that you should be able to remove the problem drive, wait about 20 seconds and insert the replacement. It should start the rebuild automatically, if not then you can assign it as a hotspare with commands found on page 34 here.   Let me know how it goes.  
I have a disk in a raid 10 virtual disk that is failing. The physical disk caddy has an amber light on it and in the perc display it shows with an orange yield sign with an exclamation mark in it. I assume that means it is failing even though it is still running and not yet degrading the virtual disk. I have a new spare now to replace it. I don't have a spare slot in the chassis. If I did I would insert the new disk, make it a hot spare for the virtual disk, then pull the failing disk. Since I don't have a spare slot. what is the best way to approach this. In other words, do which series of commands in which order? Do I just take the failing disk off line, pull it, replace with new, mark it as hot spare? I'd kind of like assurance that I'm doing it in the right order before going ahead The disk is a member of Controller0, Virtual disk1. It is disk#6 on enclosure#32 And indeed queerying the disk gives me the same serial number as the one that shows in idrac with an amber exclamation mark [root[NAME]-VMware-Lam:/opt/lsi/perccli] ./perccli /c0/v1 show allCLI Version = 007.0529.0000.0000 Sep 18, 2018Operating system = VMkernel 6.7.0Controller = 0Status = SuccessDescription = None /c0/v1 :====== ----------------------------------------------------------------DG/VD TYPE State Access Consist Cache Cac sCC Size Name----------------------------------------------------------------1/1 RAID10 Optl RW Yes RWBD - OFF 1.635 TB SAS15K---------------------------------------------------------------- Cac=CacheCade|Rec=Recovery|OfLn=OffLine|Pdgd=Partially Degraded|Dgrd=DegradedOptl=Optimal|RO=Read Only|RW=Read Write|HD=Hidden|TRANS=TransportReady|B=Blocked|Consist=Consistent|R=Read Ahead Always|NR=No Read Ahead|WB=WriteBack|FWB=Force WriteBack|WT=WriteThrough|C=Cached IO|D=Direct IO|sCC=ScheduledCheck Consistency PDs for VD 1 :============ ------------------------------------------------------------------------------EID:Slt DID State DG Size Intf Med SED PI SeSz Model Sp Type------------------------------------------------------------------------------32:10 10 Onln 1 558.375 GB SAS HDD N N 512B ST600MP0005 U -32:11 11 Onln 1 558.375 GB SAS HDD N N 512B ST600MP0005 U -32:6 6 Onln 1 558.375 GB SAS HDD N N 512B ST600MP0005 U -32:7 7 Onln 1 558.375 GB SAS HDD N N 512B ST600MP0005 U -32:8 8 Onln 1 558.375 GB SAS HDD N N 512B ST600MP0005 U -32:9 9 Onln 1 558.375 GB SAS HDD N N 512B ST600MP0005 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 Encrypting Drive|PI-Protection InfoSeSz-Sector Size|Sp-Spun|U-Up|D-Down/PowerSave|T-Transition|F-ForeignUGUnsp-Unsupported|UGShld-UnConfigured shielded|HSPShld-Hotspare shieldedCFShld-Configured shielded|Cpybck-CopyBack|CBShld-Copyback Shielded VD1 Properties :==============Strip Size = 64 KBNumber of Blocks = 3512991744VD has Emulated PD = NoSpan Depth = N/ANumber of Drives Per Span = N/AWrite Cache(initial setting) = WriteBackDisk Cache Policy = Disk's DefaultEncryption = NoneData Protection = NoneActive Operations = NoneExposed to OS = YesCreation Date = 07-03-2016Creation Time = 01:18:54 PMEmulation type = defaultCachebypass Mode = Cachebypass DisableIs LD Ready for OS Requests = YesSCSI NAA Id = 61418770601b16001e703c3e0950c5f9SCSI Unmap = No   [root[NAME]-VMware-Lam:/opt/lsi/perccli] ./perccli /c0/e32/s6 show allCLI Version = 007.0529.0000.0000 Sep 18, 2018Operating system = VMkernel 6.7.0Controller = 0Status = SuccessDescription = Show Drive Information Succeeded. Drive /c0/e32/s6 :================ ------------------------------------------------------------------------------EID:Slt DID State DG Size Intf Med SED PI SeSz Model Sp Type------------------------------------------------------------------------------32:6 6 Onln 1 558.375 GB SAS HDD N N 512B ST600MP0005 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 Encrypting Drive|PI-Protection InfoSeSz-Sector Size|Sp-Spun|U-Up|D-Down/PowerSave|T-Transition|F-ForeignUGUnsp-Unsupported|UGShld-UnConfigured shielded|HSPShld-Hotspare shieldedCFShld-Configured shielded|Cpybck-CopyBack|CBShld-Copyback Shielded Drive /c0/e32/s6 - Detailed Information :======================================= Drive /c0/e32/s6 State :======================Shield Counter = 0Media Error Count = 0Other Error Count = 0Drive Temperature = 37C (98.60 F)Predictive Failure Count = 1S.M.A.R.T alert flagged by drive = Yes Drive /c0/e32/s6 Device attributes :==================================SN = S7M0QBXXManufacturer Id = SEAGATEModel Number = ST600MP0005NAND Vendor = NAWWN = 5000C5008F5CE770Firmware Revision = VT31Firmware Release Number = N/ARaw size = 558.911 GB [0x45dd2fb0 Sectors]Coerced size = 558.375 GB [0x45cc0000 Sectors]Non Coerced size = 558.411 GB [0x45cd2fb0 Sectors]Device Speed = 12.0Gb/sLink Speed = 12.0Gb/sWrite Cache = DisabledLogical Sector Size = 512BPhysical Sector Size = 512BConnector Name = 00 Drive /c0/e32/s6 Policies/Settings :==================================Drive position = DriveGroup:1Enclosure position = 1Connected Port Number = 0(path0)Sequence Number = 2Commissioned Spare = NoEmergency Spare = NoLast Predictive Failure Event Sequence Number = 6513Successful diagnostics completion on = N/ASED Capable = NoSED Enabled = NoSecured = NoCryptographic Erase Capable = NoLocked = NoNeeds EKM Attention = NoPI Eligible = NoCertified = YesWide Port Capable = No Port Information :================ -----------------------------------------Port Status Linkspeed SAS address-----------------------------------------0 Active 12.0Gb/s 0x5000c5008f5ce7711 Active 12.0Gb/s 0x0----------------------------------------- Inquiry Data =00 00 06 12 8b 01 10 02 53 45 41 47 41 54 45 2053 54 36 30 30 4d 50 30 30 30 35 20 20 20 20 2056 54 33 31 53 37 4d 30 51 42 58 58 00 00 00 0000 00 00 00 00 00 00 00 00 00 00 a2 0c 60 20 e004 60 04 c0 00 00 00 00 00 00 00 00 00 00 00 0000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0000 43 6f 70 79 72 69 67 68 74 20 28 63 29 20 3230 31 35 20 53 65 61 67 61 74 65 20 41 6c 6c 20
perccli commands to replace a failing disk