Cavern is the primary WWW site/server for the U of A campus, primarily supporting the UARKinfo CWIS (Campus Wide Information System) effort. Over 400 information provider accounts reside on this machine. Also, cavern hosts the primary anonymous FTP server nic.uark.edu.
See DRPWWW50: WWW Server Relationships for
information on how the various web servers interact.
Base: SparcServer 20 model 50
Memory: 160 Meg
Disk: 10 Gig
Tape: 4mm DAT
5 Physical units requiring 5 110Vlt outlets.
(Initial Specs taken from Sales Quote: ME-JK-6717-B)
Part Description Original Cost
S20S-51-32-P69 SPARCserver 20 Model 51 with 60MHz $8,697 SuperSPARC Processor with SuperCache 32 Mbytes, 1.05 Internal Fast SCSI-2 disk 644-Mbyte Internal SunCD Plus X3540A Type 6 Country Kits for U.S. and Canada only UNIX X327A 17-inch Color Monitor, 4-Mbyte SX Frame $2,340 Buffer, Cable and Auxiliary Video Connection Card. X569A 4.2-Gbyte Multi-Disk Pack (2 x 2.1-Gbyte Fast $2,940 SCSI-2 Drives. X567A 2.1-Gbyte Fast SCSI-2 Desktop Disk Pack $1,470 X822A 5-Gbyte 4mm Tape Desktop Storage Pack $1,200 X164P 64-Mbyte Memory Expansion (64-Mbyte SIMM) * $2,820 SOLS-C Solaris 2.X Media Kit Only CD-ROM for all $60 Server SPARCsystems
Total disk space is now 10 Gig. The original system disk, the internal 1 Gig unit was replaced with a 2 Gig unit and a addition internal 2 Gig unit has been installed.
OS: Solaris 2.5.1 CD
All system functions can be restored from tape after the designated machine has been attached to the network and a suitable tape drive is available.
At least 8 gig of available storage is needed. The tarpit multimedia system is a possible choice for a temporary system. It would be necessary to acquire two Sun Multidisk pack devices to be attached to tarpit to hold the files needed to bring up WWW and related servers. Also a tape drive of the type currently in use will be needed in order to restore from tape. Cavern currently uses 4mm DAT but it is expected that it will be replaced with 8mm DAT. Backups are now performed to the 8mm tape unit attached t o the apsara host. Dump files are being written for cavern, apsara and alumni to one tape. At some point we will exceed the capacity and either move to a two tape dump or some other method for backup.
Over the summer the server and user community was split accross two machines. The cavern machine now serves the role of a host for information providers and HTML/CGI development. A new server machine (Ultra class) has been implemented which runs the production servers and to which the user community file systems are mounted.
This machine adds 4gig of space so a backup schedule for this machine has been integrated into our current backup schedule.
Regardless of the configuration (one or two machines) used to serve the data, it should be possible to reinstate these services on any capable machine so long as sufficient disk space is available. Performance might suffer if the machine is under powered but since it would only be a temporary situation it should suffice.
Offsite Backup Procedures
Current backup schedules include the cavern, apsara and alumni hosts.
One tape written Friday night.
Tapes to be include in pickup by operations personnel for delivery offsite.
Recovery from tape
Procedures for restoring file systems, directories and files are outlined in the document DRPWWW02: Tape Restore Process. This document covers the basic steps required to use the ufsrestore command to pull archived material from the tapes.
Filesystem kbytes used avail capacity Mounted on /dev/dsk/c0t3d0s0 48023 13488 29735 32% / /dev/dsk/c0t3d0s6 288855 204672 55303 79% /usr /proc 0 0 0 0% /proc fd 0 0 0 0% /dev/fd /dev/dsk/c0t3d0s3 492351 171424 271697 39% /var /dev/dsk/c0t5d0s2 1952573 1066630 690693 61% /export/home/services /dev/md/dsk/d0 3894490 1684740 1820310 49% /export/home /dev/dsk/c0t3d0s4 480919 345665 87164 80% /export/home1 /dev/dsk/c0t3d0s5 480919 9 432820 1% /export/home2 /dev/dsk/c0t4d0s4 985446 460738 426168 52% /opt /dev/dsk/c0t4d0s5 966382 720518 149234 83% /opt1 swap 188392 5220 183172 3% /tmp
The output above is from the command 'df -k' performed on the cavern system at the time of this writing. The numbers will vary; however, the layout will remain the same. That is, slice designations such as '/dev/dsk/c0t4d0s5' and it's relationship to the file system '/opt1' will not change. When restoring a file system to a new volume on a new machine for instance the slice designation for the '/export/home' file system might not be what is shown above. What is important is that the slice is allocated enough space to hold the old file system data, or even more.
NOTE: file system /dev/md/dsk/d0 is a concatenation of two physical disks created using the Solstice disksuite package. Refer to the information regarding the creation of such file systems in the installation manual provided for the Solstice DiskSuite software.
The file system can be created on the new slice having the same name as
the one on the archive tape and the tape contents can be written to the
new volume/slice. The system will take care of the variations in slice/
volume naming so long as the archived file system matches directly the
file system created to hold it.
Generating a new system
To create a replacement system from scratch will involve the following steps each of which will be documented in detail later in this document.
1) Acquire replacement component parts (as detailed above)
2) Determine suitable site for assembling replacement system.
3) Put together the replacement system. Hardware.
4) Establish base operating system and network capability.
5) Restore file system layout to match old cavern system.
6) Restore directly from tape file systems from previous system.
7) Test and evaluate to see if all systems are in place.
I. Replacement Hardware.
Follow procedure outline elsewhere for submitting detailed replacement parts request. Perform all administrative tasks required to get replacements expedited from SMCC.
II. Establish New Site.
Consult Disaster Recovery Coordinator for site assignment. Submit required space and power requirements.
III. Reconstruct Hardware.
Upon receipt of hardware, unpack and assemble components at the new site. Retain all paperwork, shipping info, etc.
IV. Bring up base system.
V. Recreate filesystems.
Solaris 2.5.1 OS Operating System CAP MacIntosh compatability ADSM Incremental backup software Samba NETBEIU connectivety (for Win95 & NT) Security sendmail.8.7.2 Berkley sendmail wu-ftpd-2.4 Washington University FTP daemon tcp_wrappers connection security and log enhancements pidentd-2.5 RFC-931 Remote identity checking fingerd-1.3 Secure finger daemon rpcbind_1.1 Secure Remote Procedure Call
Development tools Sun compilers C, C++ Pascal PD compilers GNU C,C++ gcc-2.6.3 SAS Statistical software NetPBM Graphic conversion utilities Servers Netscape commerce server WWW Netscape communications server WWW wwwstat-1.01 WWW stats package gwstat WWW stats graphing WAIS freeWAIS-0.202 Full text indexing Isite Full text indexing CSO E-mail directory qi server ph client Informix database Viewpoint Pro ESQLC Informix Online Server Sapphire ISQLperl POP qpopper2.1.4 Qualcomm POP3 server TeX LaTeX User progs Pine-3.91 Pine email package
Lynx Textmode Web browser Notes relating to origins of certain software packages. - E-mail dir CSO vixen.cso.uiuc.edu - Full text indexing wais ftp.cnidr.org Isite - sendmail ftp.cs.berkeley.edu /scr/ucb/sendmail 8.7.1 - Security - TCP wrappers ftp.win.tue.nl - rpcbind - fingerdi (in.fingerd) fiwi.foobar.com /pub /etc/hosts.allow Secure services - wu-ftpd-2.4 uiarchive.cso.uiuc.edu - rcs.188.8.131.52 - qterm - pidentd-2.5 ftp.lysator.liu.es /pub/servers -md5 encryption
1. The startup scripts.
The directory /etc/init.d contains numerous scripts that provide the ability to start and stop processes necessary for normal operation on the system. During the OS install most of this is created automatically and need not be adjusted. There are several scripts here though that will have to be restored manually to complement the packages that they represent. Which will be restored as part of the overall process of placing file systems back onto the new machine. Below is a listing of the /etc/init.d directory. The files labeled restore should be retrieved.
cap_stuff --> restore
httpd --> restore
https --> restore
https-admin --> restore
informix --> restore
informix_tool --> restore