Document ID: 12562
Updated: Jan 31, 2006
Contents
Introduction
This document describes how to recover a disk inside a storage array that has lost its boot sector on the Cisco Cache Engine.
Prerequisites
Requirements
There are no specific requirements for this document.
Components Used
The information in this document is based on these software and hardware versions:
-
Cisco 590 Cache Engine in a lab environment with cleared configurations
-
Small Computer System Interface (SCSI) socket
-
Cisco Storage Array
-
Cisco Cache Software Release 2.3
The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.
Conventions
For more information on document conventions, refer to the Cisco Technical Tips Conventions.
How to Read the Configuration
In this configuration, the 590 Cache Engine connects to a storage array through the SCSI socket. The flash memory contains the Cisco Cache Software Release 2.3.
Initializing memory. Please wait. Cisco Robin II: Selected Console. BIOS Version: C9 BIOS Build date: 06/26/00 Symbios, Inc. SDMS (TM) V4.0 PCI SCSI BIOS, PCI Rev. 2.0, 2.1 Copyright 1995, 1998 Symbios, Inc. PCI-4.11.00 HBA ID LUN VENDOR PRODUCT REV SYNC WIDE INT13 CYL/ HD/SEC --- -- --- -------- ---------------- ---- ---- ---- ----- ------------ 0 0 0 IBM DMVS18D 0100 80.0 16 BOOT 1024/255/63 0 1 0 QUANTUM VIKING II 9.1SCA 5520 80.0 16 81h 1024/255/63 0 7 0 Symbios SYM53C895 0002 80.0 16 0 8 0 SEAGATE ST318404LC 0002 NO 16 82h 1024/255/63 0 9 0 SEAGATE ST318404LC 0002 NO 16 83h 1024/255/63 0 10 0 SEAGATE ST318404LC 0002 NO 16 84h 1024/255/63 0 11 0 SEAGATE ST318404LC 0002 NO 16 85h 1024/255/63 0 12 0 SEAGATE ST318404LC 0002 NO 16 86h 1024/255/63 0 13 0 SEAGATE ST318404LC 0002 NO 16 87h 1024/255/63 0 15 0 EuroLogc ESM 0205 NO 8
The Cache Engine BIOS sees all the storage array hard disks:
Symbios, Inc. PCI boot ROM successfully installed!
Cisco CE Booting From Flash.
Cisco Cache Engine Boot. Version: 5.3.1
Creation date: May 2 2000, 11:49:05
Press any key to stop auto-boot...
0
auto-booting...
boot device (flash,net) [ flash]:
; file name [ ce590-cache-230.bin]:
cache IP address [ 172.17.241.108]:
IP network mask [ 255.255.255.0]:
server IP address [ 172.17.247.195]:
gateway IP address [ 172.17.241.1]:
protocol (rcp,ftp,tftp) [ tftp]:
; username [ anonymous]:
; password [ gfa@cisco.com]:
; flags [ 0]:
Starting at 0x108000...
#!ImageInfo
#
# +--------------------+
# | CISCO CE image |
# +--------------------+
#
SUPPORTED_PRODUCTS=CE590
UNCOMPRESSED_CKSUM=0x6925ea3
UNCOMPRESSED_SIZE=0x355198
COMPRESSED_CKSUM=0x9199a6d6
COMPRESSED_SIZE=0x167175
#
Self decompressing the image : ###########################################################################
######################### [OK]
Launching the image, please wait...
..................
Console IO Initialized
Attaching network interface lo0... done.
; Restricted Rights Legend
Use, duplication, or disclosure by the Government is
subject to restrictions as set forth in subparagraph
(c) of the Commercial Computer Software - Restricted
Rights clause module_register_init name sym func 0x1ecdf8 data 0x44bb94
acompat_pci_handler: sym probing...
895: found
t Fsym0: No NVRAM, ID 7, Fast-40, LVD, parity checking
AR sec. 52.227-19 and subparagraph
(c) (1) (ii) of the Rights in Technical Data and Computer
Software clause at DFARS sec. 252.227-7013.
; Cisco Systems, Inc.
; 170 West Tasman Drive
; San Jose, California 95134-1706
Cisco Content Engine
Copyright (c) 1986-2000 by Cisco Systems, Inc.
Software Release: CE ver 2.30 (Build: FCS 11/09/00)
Compiled: 19:57:30 Nov 9 2000 by bbalagot
Image text-base 0x108000, data_base 0x43515c
System restarted by Power Up
The system has been up for 6 seconds.
System booted from "flash"
SVCINIT - phase complete
895: attached unit 0
Waiting 2 seconds for SCSI devices to settle
pt0 at sym0 bus 0 target 15 lun 0
pt0: <EuroLogc ESM 0205> Removable Processor SCSI-3 device
pt0: 3.300MB/s transfers
da0 at sym0 bus 0 target 0 lun 0
da0: <IBM DMVS18D 0100> Fixed Direct Access SCSI-3 device
da0: 80.000MB/s transfers (40.000MHz, offset 31, 16bit), Tagged Queueing En
da0: 17501MB (35843670 512 byte sectors: 255H 63S/T 2231C)
da1 at sym0 bus 0 target 1 lun 0
da1: <QUANTUM VIKING II 9.1SCA 5520>Fixed Direct Access SCSI-2 device
da1: 80.000MB/s transfers (40.000MHz, offset 31, 16bit), Tagged Queueing En
da1: 8709MB (17836668 512 byte sectors: 255H 63S/T 1110C)
This list contains all the storage array hard disks that the Cache Engine SCSI driver finds:
da6 at sym0 bus 0 target 12 lun 0 da6: <SEAGATE ST318404LC 0002> Fixed Direct Access SCSI-3 device da6: 80.000MB/s transfers (40.000MHz, offset 31, 16bit), Tagged Queueing En da6: 17501MB (35843670 512 byte sectors: 255H 63S/T 2231C) da5 at sym0 bus 0 target 11 lun 0 da5: <SEAGATE ST318404LC 0002> Fixed Direct Access SCSI-3 device da5: 80.000MB/s transfers (40.000MHz, offset 31, 16bit), Tagged Queueing En da5: 17501MB (35843670 512 byte sectors: 255H 63S/T 2231C) da4 at sym0 bus 0 target 10 lun 0 da4: <SEAGATE ST318404LC 0002> Fixed Direct Access SCSI-3 device da4: 80.000MB/s transfers (40.000MHz, offset 31, 16bit), Tagged Queueing En da4: 17501MB (35843670 512 byte sectors: 255H 63S/T 2231C) da3 at sym0 bus 0 target 9 lun 0 da3: <SEAGATE ST318404LC 0002> Fixed Direct Access SCSI-3 device da3: 80.000MB/s transfers (40.000MHz, offset 31, 16bit), Tagged Queueing En da3: 17501MB (35843670 512 byte sectors: 255H 63S/T 2231C) da2 at sym0 bus 0 target 8 lun 0 da2: <SEAGATE ST318404LC 0002> Fixed Direct Access SCSI-3 device da2: 80.000MB/s transfers (40.000MHz, offset 31, 16bit), Tagged Queueing En da2: 17501MB (35843670 512 byte sectors: 255H 63S/T 2231C) da7 at sym0 bus 0 target 13 lun 0 da7: <SEAGATE ST318404LC 0002> Fixed Direct Access SCSI-3 device da7: 80.000MB/s transfers (40.000MHz, offset 31, 16bit), Tagged Queueing En da7: 17501MB (35843670 512 byte sectors: 255H 63S/T 2231C)
All the drives are correctly recognized. Below, the line in boldface indicates that the operating system has a problem with the mount of /c0t4d0s3. The hard disk logical structure has been corrupted.
SCSI initialization complete DEVINIT - phase complete FSINIT - phase complete Configuring from NVRAM... Attaching network interface fei0... done. It is recommended to set restrictions that allow or deny HTTPS traffic to Destination Ports. Default settings may not provide the desired security le ----------------------------------------------------------- ----------- "admin" super-user account is NOT password protected SECURITY ALERT: Please password protect the above super-user accounts! ----------------------------------------------------------- ----------- CONF - phase complete NTP: Waiting (2 minutes) for network initialization SNMP: Waiting (2 minutes) for network initialization Fri Mar 24 13:31:00 2000: CFS volume /c0t4d0s3 mount failed S_partlib_INVALOTSECT Fri Mar 24 13:31:00 2000: dns-cache turned ONLINE due to dependency on nameer
Here, the text in boldface indicates that the boot sector of this disk is lost. The partition structure is lost.
START - phase complete Username: admin Password: Please set a password for this user account to aid security! disaster# show disks /c0t0d0 (scsi bus 0, unit 0, lun 0) /c0t1d0 (scsi bus 0, unit 1, lun 0) /c0t2d0 (scsi bus 0, unit 2, lun 0) /c0t3d0 (scsi bus 0, unit 3, lun 0) /c0t4d0 (scsi bus 0, unit 4, lun 0) /c0t5d0 (scsi bus 0, unit 5, lun 0) /c0t6d0 (scsi bus 0, unit 6, lun 0) /c0t7d0 (scsi bus 0, unit 7, lun 0) disaster# show disk-parti /c0t2d0 Disk size : 35843670 sectors Partition 1: UNUSED, offset 0 sectors, size 0 sector Partition 2: CISCO_BFS_1, offset 10 sectors, size 1024 sector Partition 3: CISCO_CFS_1, offset 1044 sectors, size 35842616 sector Partition 4: UNUSED, offset 0 sectors, size 0 sector disaster# show disk-parti /c0t3d0 Disk size : 35843670 sectors Partition 1: UNUSED, offset 0 sectors, size 0 sector Partition 2: CISCO_BFS_1, offset 10 sectors, size 1024 sector Partition 3: CISCO_CFS_1, offset 1044 sectors, size 35842616 sector Partition 4: UNUSED, offset 0 sectors, size 0 sector disaster# show disk-parti /c0t4d0 Unable to show disk partitions for /c0t4d0, errno S_partlib_INVALID_BOOTSEC disaster# show disk-parti /c0t5d0 Disk size : 35843670 sectors Partition 1: UNUSED, offset 0 sectors, size 0 sector Partition 2: CISCO_BFS_1, offset 10 sectors, size 1024 sector Partition 3: CISCO_CFS_1, offset 1044 sectors, size 35842616 sector Partition 4: UNUSED, offset 0 sectors, size 0 sector disaster# show disk-parti /c0t6d0 Disk size : 35843670 sectors Partition 1: UNUSED, offset 0 sectors, size 0 sector Partition 2: CISCO_BFS_1, offset 10 sectors, size 1024 sector Partition 3: CISCO_CFS_1, offset 1044 sectors, size 35842616 sector Partition 4: UNUSED, offset 0 sectors, size 0 sector disaster# show disk-parti /c0t7d0 Disk size : 35843670 sectors Partition 1: UNUSED, offset 0 sectors, size 0 sector Partition 2: CISCO_BFS_1, offset 10 sectors, size 1024 sector Partition 3: CISCO_CFS_1, offset 1044 sectors, size 35842616 sector Partition 4: UNUSED, offset 0 sectors, size 0 sector
You need to recreate the directory structure with the disk manufacture command. This flexible command creates the right directory structure. Also, when you use it on /c0t0d0, it creates the DOS file system as well.
disaster# disk manufacture /c0t4d0 total size of disk = 35843670 CISCO_UVFAT_1 vol /c0t4d0s1 part_off 0 part_siz 0 Skipping creation of DOS partition for SCSI device
The DOS partition is skipped because it is not necessary.
CISCO_BFS_1 vol /c0t4d0s2 part_off 10 part_siz 1024 CISCO_CFS_1 vol /c0t4d0s3 part_off 1044 part_siz 35842616 disaster#sho disk-parti /c0t4d0 Disk size : 35843670 sectors Partition 1: UNUSED, offset 0 sectors, size 0 sector Partition 2: CISCO_BFS_1, offset 10 sectors, size 1024 sector Partition 3: CISCO_CFS_1, offset 1044 sectors, size 35842616 sector Partition 4: UNUSED, offset 0 sectors, size 0 sector
The failed hard disk is now back on line.
Filesystem Statistics for volume /c0t4d0s3 Status: mounted Data Bytes Max 17907227 KB Data Bytes Used 0 KB ( 0% full) Disk Wraps 0 Inode Hits 0 Inode Misses 0 CFS Read error 0 CFS Write error 0 Inode Load error 0 Attribute Load error 0 CFS Object Truncations 0 Truncated CFS Object Flushes 0 Volume Clears 0 Format time Fri Mar 24 13:33:21 2000 Mount time Fri Mar 24 13:33:44 2000 Unmount time Fri Mar 24 13:33:19 2000
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Refer to Cisco Technical Tips Conventions for information on conventions used in this document.
Updated: Jan 31, 2006
Document ID: 12562