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============================================ Xfsdump/Xfsrestore Troubleshooting Questions ============================================ SGI Support (relevant for IRIX customers only) ---------------------------------------------- * What is the customer support case number? * Is there an associated engineering bug number? * Do you have any existing contacts within SGI? General ------- * Have you run xfsdump or xfsrestore before? * Is this a new problem? And if so, what has changed since xfsdump or xfsrestore last worked correctly? Operating System (OS) --------------------- * What versions of the OS are you using now and when the dump was made ? (IRIX: uname -Ra or Linux: uname -a, cat /etc/issue) * What patches were installed for the OS ? * If Linux, what version of the xfsdump package are you using? (rpm -q xfsdump) * Is there anything in the /var/adm/SYSLOG file for the period that xfsdump or xfsrestore was run? File System (FS) ---------------- * How big is the filesystem being dumped ? (df -kl) * Does the filesystem have quotas enabled ? (mount) * Is the filesystem managed with DMF ? * Does the file system use Security attributes such as ACLs ? * Are extended attributes used in the filesystem ? * Is the filesystem controlled by CXFS, or the host part of a cluster? Tape System ----------- * Is TMF or Openvault used to manage the tapes ? If so, which versions? * What kind of tape drive is used ? * On IRIX, what kind of tape driver is used - tpsc or ts ? (eg. attr -g _drivername /dev/rmt/tps4d6) * Is the drive used in variable or fixed block mode ? (IRIX: look at the path for the tape specification) (Linux: mt -f /dev/st0 status; and report the blocksize) * How many tapes were used for the dump ? Dump/restore commands --------------------- * What was the xfsdump/xfsrestore command lines used ? * What was the output from the commands ? * If the FS is not too large, what is the output with the -v5 option ? * How big was the dump ? * What drive strategy was used in the commands? (xfsdump -v3 ... |grep "instantiat") (xfsrestore -v3 ... |grep "instantiat") If you have the -v5 output, then just grep for "instantiat". * If dumping/restoring to/from a remote host, what is the OS version of that host? * If xfsdump/xfsrestore seem to take a really long time, use the -p option to get progress output. * What is the output of 'xfsdump -I' ? Misc ---- * If the problem is related to files not being dumped or restored, and you know the inode numbers from the xfsdump/xfsrestore output, what files are they associated with? (IRIX: xfs_ncheck -i <ino /dev/dsk/<disk_device) (Linux: find /<mntpt -local -inum <ino ) ---------------------------------------------------------------------------