Red Hat GLOBAL FILE SYSTEM 4.7 Guía de usuario descargar pdf (Pagina 5)

6.2 Dealing with ENOSPC or EIO errors........................................................................................... 6-4

6.2.1 Determining the file system capacity using the lfs df command................................................... 6-5

6.2.2 Dealing with insufficient inodes on a file system....................................................................... 6-5

6.2.3 Freeing up space on OST services ......................................................................................... 6-6

6.3 Using Lustre file systems — performance hints .............................................................................. 6-7

6.3.1 Creating and deleting large numbers of files ........................................................................... 6-7

6.3.1.1 Improving the performance of the rm -rf command............................................................... 6-8

6.3.2 Large sequential I/O operations ............................................................................................6-8

6.3.3 Variation of file stripe count with shared file access.................................................................. 6-9

6.3.4 Timeouts and timeout tuning .................................................................................................. 6-9

6.3.4.1 Changing the Lustre timeout attribute ............................................................................... 6-11

6.3.5 Using a Lustre file system in the PATH variable ...................................................................... 6-12

6.3.6 Optimizing the use of the GNU ls command on Lustre file systems ........................................... 6-12

6.3.7 Using st_blksize to determine optimum I/O block size ............................................................ 6-12

7Troubleshooting

7.1 Installation issues...................................................................................................................... 7-2

7.1.1 The initrd file is not created ................................................................................................... 7-2

7.1.2 Client node still boots the old kernel after installation................................................................ 7-3

7.2 File system mounting issues........................................................................................................ 7-3

7.2.1 Client node fails to mount or unmount a Lustre file system.......................................................... 7-3

7.2.2 The sfsmount command reports device or resource busy............................................................ 7-4

7.2.3 Determine whether Lustre is mounted on a client node .............................................................. 7-5

7.2.4 The SFS service is unable to mount a file system (SELinux is not supported).................................. 7-5

7.2.5 Troubleshooting stalled mount operations................................................................................ 7-6

7.3 Operational issues.................................................................................................................... 7-6

7.3.1 A find search executes on the global file system on all client nodes............................................ 7-6

7.3.2 Investigating file system problems .......................................................................................... 7-6

7.3.3 Reset client nodes after an LBUG error.................................................................................... 7-7

7.3.4 Access to a file system hangs ................................................................................................ 7-7

7.3.5 Access to a file hangs (ldlm_namespace_cleanup() messages) ................................................... 7-8

7.3.6 Troubleshooting a dual Gigabit Ethernet interconnect ............................................................... 7-9

7.4 Miscellaneous issues ............................................................................................................... 7-10

7.4.1 socknal_cb.c EOF warning ................................................................................................. 7-10

A Using the sfsconfig command

B Options for Lustre kernel modules

B.1 Overview .................................................................................................................................B-2

B.2 Setting the options lnet settings....................................................................................................B-3

B.2.1 Testing the options lnet settings ...............................................................................................B-4

B.3 Modifying the /etc/modprobe.conf file on Linux Version 2.6 client nodes manually ..........................B-6

B.4 Modifying the /etc/modules.conf file on Linux Version 2.4 client nodes manually .............................B-6

C Building an HP SFS client kit manually

C.1 Overview ................................................................................................................................ C-2

C.2 Building the HP SFS client kit manually ........................................................................................ C-2

C.3 Output from the SFS Client Enabler............................................................................................. C-9

C.4 Locating the python-ldap and hpls-diags-client packages ............................................................... C-9

Glossary

Index

1 2 3 4 5 6 7 8 9 10 ... 133 134

Comentarios a estos manuales

Sin comentarios

Red Hat GLOBAL FILE SYSTEM 4.7 Guía de usuario Pagina 5

Comentarios a estos manuales

Relacionado con productos y manuales para Manuales de software Red Hat GLOBAL FILE SYSTEM 4.7