: Session 3

Designing and Implementing Compaq StorageWorks Module 1

1.Storage System 2.Storage Subsystem 3.HSG80 Controller Configuration 4.Raid Setting 5.Troubleshooting

4 RA8000 SCSI Buses All devices in the same column are on the same SCSI bus, or port. All devices in the same row have the same device address, or target ID. Device addresses 4 and 5 are reserved and not to be used.

SBB Power Supply Placement

SBB Power Supplies At least four are necessary to power the cabinet -Five power supplies are required for a standard power configuration (4+1) -One Power Supply is redundant and will take over for any single failed power supply. -Eight power supplies and a B power entry module are required -for fully redundant power (4+4 configuration) -Power supplies are hot-swappable (if there are more than four)

7 Environmental Monitoring Unit(EMU)

EMU Error Detection –The EMU will detect High temperature Failed disk drives Cache battery low voltage or failure Controller errors Ultra SCSI termination errors Blower failures

EMU and System Shutdown –The EMU will shutdown the subsystem cabinet if: A blower is removed for more than eight minutes If all four blowers in one vertical bank are defective and not replaced within 8 minutes If there are less than four functioning power supplies If any two temperature sensors register 50 Degrees Centigrade(122 Degrees F). This is the EMU default setting.It can be changed.

Power Verification and Address Unit (PVA) 1. Power switch 2. UPS Communications 3. SCSI target wheel

Power Verification and Address Unit (PVA) –Works with the EMU and acts as a redundant fault monitor –The PVA will shut down the subsystem if the EMU is removed for more then eight minutes –The PVA cannot be hot swapped –Valid PVA SCSI settings are 0, 2 and 3 only –If the PVA SCSI setting must be changed, the cabinet must be shut down and powered off for the changes to take effect

12 Setting the ID for the Enclosure 0, 2, and 3 are the only valid PVA settings

13 HSG80 RAID controller

Controller Operator Control Panel (OCP) 1. FC Ports 2. ACS Slot 3. Maintenance Port 4. Operator Control Panel

Array Controller Software PCMCIA Card –Each controller requires a PCMCIA card to operate –PCMCIA card contains controller firmware –Firmware is downloaded into volatile memory at startup

Cache Modules –Left cache module : top controller –Right cache module : bottom controller External Cache Modules

External Cache Batteries (ECB) Cache Batteries –Cache batteries are checked every 24 hours –Weak Cache batteries checked every 4 minutes for 10 hours –When fully charged, an ECB can preserve 512 MB of cache memory for 24 hours, or 64 MB of cache memory for 48 hours –Cache battery LEDs Slow flashing = discharging Rapid flashing = charging Steady green = fully charged –Battery cut-off button disconnects battery from cache

Dual Speed Blowers –Can be hot swapped –Can be set to run at high speed continually –If a blower is removed, the subsystem will shut down after eight minutes

I/O Modules –Six modules with dual pairs of 68-pin VHD connectors. –One for each internal SCSI bus –Connect expansion cabinets to the primary cabinet –Wide-Ultra SCSI-2, single-ended termination. –Cable length between cabinets is restricted to 1.5 meters

Console Establishing a CLI Session –Connect the serial cable (DB9 to RJ12) from the maintenance port of the controller to any terminal or to the COM Port of a PC running a terminal emulation program Terminal Setting (using Hyper Terminal) –Use these parameters to establish a session 9600 bps 8 data bits 1 stop bit No parity No flow control –Press the Enter key

Controller Failover Mode Type Dual-Redundant (Transparent Failover Mode) Multi-Bus Failover Mode Configuring Redundant Controllers

Dual–Redundant Mode SET FAILOVER COPY = THIS or SET FAILOVER COPY = OTHER

Multi-Bus Failover Mode SET MULTIBUS COPY = THIS or SET MULTIBUS COPY = OTHER

HSG80 Controller Configuration 1. HSG80 Controller Terminal Emulation Program - Settings (using the Hyper Terminal) 2. - SHOW THIS 3. HSG80 Controller ( ) -CONFIGURATION RESET -SET NOFAILOVER -Controller (Bottom Controller down ) -CONFIGURATION RESET -DOWN BOTTOM CONTROLLER RESET BUTTON. 4. SHOW THIS FULL (NODE ID ) - NODE ID 0

5. SET THIS_CONTROLLER NODE_ID = XXXX- XXXX~ - NODE ID Controller Restart. 6.RESTART THIS - Controller restart Controller Failover mode, Time Cache. 7.SHOW THIS - Controller Failover mode Time. 8.SET FAILOVER COPY = THIS (SET MULTIBUS COPY = THIS) 9.SHOW THIS - Time, Mirrored Cache

10. SET THIS TIME = 07-NOV-2001:07:15:00 - setting 11. SET THIS MIRROR_CACHE - Controller restart. 12.SHOW THIS - 13.SET THIS PORT_1_TOPOLOGY = LOOP_SOFT - FC-Hub set THIS PORT_1_TOPOLOGY = FABRIC - FC-Switch

Raid Setting 1.JBOD 2.RAID 0 : Stripe Set 3.RAID 1 : Mirror Set 4.RAID 5 : Raid Set 5.RAID 0+1 : Striped Mirrorset 6.Spare Set

DISK 1. Automatic - RUN CONFIG 2. Manual - ADD DISK PTLAddress PORT TARGET LUN (EX : ADD DISK DISK ) DISKPTTLL Rule : P = Port Number DISKPTTLL Rule : P = Port Number TT = SCSI ID Number TT = SCSI ID Number LL = Always 00 LL = Always 00

HSG80> INITIALIZE DISK10000 HSG80> ADD UNIT D0 DISK10000 HSG80> SHOW DISK10000 HSG80> SHOW D0 Step 1 - JBOD Step 2 - RAID 0 : Stripe Set HSG80> ADD STRIPESET STR1 DISK20000 DISK30000 HSG80> INITIALIZE STR1 HSG80> ADD UNIT D1 DISK10000 HSG80> SHOW STR1 HSG80> SHOW D1

HSG80> ADD MIRRORSET MIRR1 DISK40000 DISK50000 HSG80> INITIALIZE MIRR1 HSG80> ADD UNIT D2 MIRR1 HSG80> SHOW MIRR1 HSG80> SHOW D2 Step 3 - RAID 1 : Mirror Set Step 4 - RAID 5 : Raid Set HSG80> ADD RAIDSET R1 DISK10100 DISK20100 DISK30100 HSG80> INITIALIZE R1 HSG80> ADD UNIT D3 R1 HSG80> SHOW R1 HSG80> SHOW D3

HSG80> ADD MIRRORSET MIRR2 DISK40100 DISK50100 HSG80> ADD MIRRORSET MIRR3 DISK60000 DISK60100 HSG80> ADD STRIPESET STR2 MIRR2 MIRR3 HSG80> INITIALIZE STR2 HSG80> ADD UNIT D4 STR2 HSG80> SHOW STR2 HSG80> SHOW D4 Step 5 - RAID 0+1 : Striped Mirrorset Step 6 – Spare Set HSG80> ADD SPARESET DISK60200 HSG80> SHOW SPARESET HSG80> SHOW STORAGE

HSG80> SET FAILEDSET AUTOSPARE HSG80> SHOW FAILEDSET HSG80> SET FAILEDSET NOAUTOSPARE HSG80> SHOW FAILEDSET Failedset Disk Auto Rebuilding UNIT, STORAGE, DISK UNIT : HSG80> DELETE UNIT UNIT : HSG80> DELETE UNIT HSG80> SHOW UNIT HSG80> SHOW UNIT STORAGE : HSG80> DELETE STORAGE STORAGE : HSG80> DELETE STORAGE HSG80> SHOW STORAGE HSG80> SHOW STORAGE DISK : HSG80> DELETE DISK DISK : HSG80> DELETE DISK HSG80> SHOW DISK HSG80> SHOW DISK

FAIL DISK REPLACE( ) HSG80> SHOW STORAGE HSG80> DEL FAILEDSET DISK HSG80> DEL FAILEDSET DISK HSG80> SHOW DISK HSG80> DELETE DISK HSG80> DELETE DISK ( NEW DISK REPLACE ) ( NEW DISK REPLACE ) HSG80> ADD DISK DISK HSG80> ADD DISK DISK HSG80> SHOW FAILED_RAIDSET HSG80> SHOW FAILED_RAIDSET HSG80> SET FAILED_RAIDSET NOPOLICY HSG80> SET FAILED_RAIDSET RECONSTRUCT = FAST ( DATA ACCESS SPEED = LOW ( DATA ACCESS SPEED = LOW DATA REBUILDINF SPEED = FAST DATA REBUILDINF SPEED = FAST RAIDSET ONLY ) RAIDSET ONLY ) HSG80> SET FAILED_RAIDSET REPLACE = NEWDISK HSG80> SET FAILED_RAIDSET REPLACE = NEWDISK HSG80> SHOW FAILED_RAIDSET HSG80> SHOW FAILED_RAIDSET HSG80> SET FAILED_RAIDSET RECONSTRUCT = NORMAL HSG80> SET FAILED_RAIDSET POLICY = BEST_PERFORMANCE

ADD UNIT {LUN} {Storage Set Name} Port 1 displays units D0 through D99Port 1 displays units D0 through D99 Port 2 displays units D100 through D199Port 2 displays units D100 through D199 Example : ADD UNIT D101 M1 Assigning LUNs (Fibre Channel)

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