HOWTO: Multi Disk System Tuning

• Index
• Introduction
• Structure
• Drive Technologies
• File System Structure
• File Systems
• Technologies
• Other Operating Systems
• Clusters
• Mount Points
• Considerations and Dimensioning
• Disk Layout
• Implementation
• Maintenance
• Advanced Issues
• Troubleshooting
• Further Information
• Getting Help
• Concluding Remarks
• Questions and Answers
• Bits and Pieces
• Appendix A: Partitioning Layout Table: Mounting and Linking
• Appendix B: Partitioning Layout Table: Numbering and Sizing
• Appendix C: Partitioning Layout Table: Partition Placement
• Appendix D: Example: Multipurpose Server
• Appendix E: Example: Mounting and Linking
• Appendix F: Example: Numbering and Sizing
• Appendix G: Example: Partition Placement
• Appendix H: Example II
• Appendix I: Example III: SPARC Solaris
• Appendix J: Example IV: Server with 4 Drives
• Appendix K: Example V: Dual Drive System
• Appendix L: Example VI: Single Drive System
• Appendix M: Disk System Documenter

28. Appendix H: Example II

The following is an example of a server setup in an academic setting, and is contributed by nakano (at) apm.seikei.ac.jp. I have only done minor editing to this section.

/var/spool/delegate is a directory for storing logs and cache files of an WWW proxy server program, "delegated". Since I don't notice it widely, there are 1000--1500 requests/day currently, and average disk usage is 15--30% with expiration of caches each day.

/mnt.archive is used for data files which are big and not frequently referenced such a s experimental data (especially graphic ones), various source archives, and Win95 backups (growing very fast...).

/mnt.root is backup root file system containing rescue utilities. A boot floppy is also prepared to boot with this partition.

=================================================
Directory               sda      sdb     hda    

swap                    |    64 |    64 |       |
/                       |       |       |    20 |
/tmp                    |       |       |   180 |

/var                    :   300 :       :       :
/var/tmp                |       |   300 |       |
/var/spool/delegate     |   300 |       |       |

/home                   |       |       |   850 |
/usr                    |   360 |       |       |
/usr/lib                -> /mnt.lib/usr.lib
/usr/local/lib          -> /mnt.lib/usr.local.lib

/mnt.lib                |       |   350 |       |
/mnt.archive            :       :  1300 :       :
/mnt.root               |       |    20 |       |

Total capacity:            1024    2034    1050


=================================================
        Drive :           sda     sdb     hda
Total capacity:         |  1024 |  2034 |  1050 |

Partition
1                       |   300 |    20 |    20 |
2                       :    64 :  1300 :   180 :
3                       |   300 |    64 |   850 |
4                       :   360 :   ext :       :
5                       |       |   300 |       |
6                       :       :   350 :       :


Filesystem         1024-blocks  Used Available Capacity Mounted on
/dev/hda1              19485   10534     7945     57%   /
/dev/hda2             178598      13   169362      0%   /tmp
/dev/hda3             826640  440814   343138     56%   /home
/dev/sda1             306088   33580   256700     12%   /var
/dev/sda3             297925   47730   234807     17%   /var/spool/delegate
/dev/sda4             363272  170872   173640     50%   /usr
/dev/sdb5             297598       2   282228      0%   /var/tmp
/dev/sdb2            1339248  302564   967520     24%   /mnt.archive
/dev/sdb6             323716   78792   228208     26%   /mnt.lib

Apparently /tmp and /var/tmp is too big. These directories shall be packed together into one partition when disk space shortage comes.

/mnt.lib is also seemed to be, but I plan to install newer TeX and ghostscript archives, so /usr/local/lib may grow about 100 MB or so (since we must use Japanese fonts!).

Whole system is backed up by Seagate Tapestore 8000 (Travan TR-4, 4G/8G).