raw device for solaris(sparc)
Hello, I am now testing Informix-dynamic server 9.2 for Sun Solaris 8, I have something can not understand for Solaris 8. (1) I used raw device /dev/rdsk/c0t1d0s0 (2GB, for rootdb) /dev/rdsk/c0t1d0s1 (2GB, for additioanl chunk) (2) after I initialized the rootdb using onmonitor, the partition of /dev/rdsk/c0t1d0s0 disappeared. (partition crupt, partition crash) (3) I used the format utility of solaris 8 to partition the disk. Can anybody tell me how to use raw device in Sun Solaris 8 (Sparc)? Thanks for your help.
First: NEVER,NEVER,NEVER refer to the direct device name, make a link and refer to that. If the device names change, you only need to change the link name. Second: Solaris comes with a volume manager which is a "lite" version of Veritas. Create logical volumes and use these. They end up in /dev/vx/rdsk. I create logical volumes named infchunk1, infchunk2, etc. Never need an offset. B-T-W, have you run into the Solaris 8,Informix,TCP/IP bug yet? tfhkcyt2000@taifuji.com wrote: > > Hello, > > I am now testing Informix-dynamic server 9.2 for > Sun Solaris 8, I have something can not understand > for Solaris 8. > > (1) I used raw device /dev/rdsk/c0t1d0s0 (2GB, for rootdb) > /dev/rdsk/c0t1d0s1 (2GB, for > additioanl chunk) > > (2) after I initialized the rootdb using onmonitor, the > partition of /dev/rdsk/c0t1d0s0 disappeared. (partition crupt, > partition crash) > > (3) I used the format utility of solaris 8 to partition the > disk. > > Can anybody tell me how to use raw device in Sun Solaris 8 (Sparc)? > > Thanks for your help.
Add an offset of at least 8K tfhkcyt2000@taifuji.com wrote in message <8tmr0b$2gd1@imsp212.netvigator.com>... >Hello, > > I am now testing Informix-dynamic server 9.2 for > Sun Solaris 8, I have something can not understand > for Solaris 8. > > (1) I used raw device /dev/rdsk/c0t1d0s0 (2GB, for rootdb) > /dev/rdsk/c0t1d0s1 (2GB, for >additioanl chunk) > > (2) after I initialized the rootdb using onmonitor, the > partition of /dev/rdsk/c0t1d0s0 disappeared. (partition crupt, > partition crash) > > (3) I used the format utility of solaris 8 to partition the > disk. > > Can anybody tell me how to use raw device in Sun Solaris 8 (Sparc)? > > > Thanks for your help. > >
- Sorry for bad english - I've no Sun servers, but I imagine you can translate What I say in your OS 1 - When the partition is mounted, Unix writes datas into the first pages of the partition. 2 - When you initialize you raw device, if offset is 0, informix overwrites these datas. -> crash So : 1 - Create a link (such as /dev/rootraw, /dev/dataraw1, ...) with your partitions /dev/rdsk.... If you have to change the physical partition (hardware failure), you can create a new raw device in another partition and you have just to change the link to match the /dev/raw before restauring. When you create your chunks, use the link name. This link MUST be in the (?) rc.d directory (or similar in Sun system) 2 - NEVER (auto) mount your partition (in UnixWare and System5, it is in /dev/vfstab) Here is an example (anonymised) # # Table of filesystem defaults. # # special fsckdev mountp fstype fsckpass automnt mntopts /dev/dsk/f1 /dev/dsk/f1 /install s5 - no - /dev/dsk/1s1 /dev/rdsk/1s1 /mnt1 vxfs 1 yes - #/dev/dsks/XXX151/s1 /dev/rdsks/XXX151/s1 RAW DEVICE RAW1 #/dev/dsks/XXX151/s2 /dev/rdsks/XXX151/s2 RAW DEVICE RAW2 /dev/dsks/XXX151/s3 /dev/rdsks/XXX151/s3 /oss11 vxfs 1 yes - etc... I 've links /dev/.../151/s1 with "RAW1" etc.. The "#" is only to show the patition in the vfstab but it is not mounted 3 - Keep 8 k (I prefer 96 K) for offset of any chunks that are at the begenning of the partition That prevents from accidental mount ( the first pages of rootdbs will never be overwriten by Unix) "smooth1" <smooth1@iclway.co.uk> a 'crit dans le message news: 3a06e1a2_1@news2.vip.uk.com... > Add an offset of at least 8K > > tfhkcyt2000@taifuji.com wrote in message > <8tmr0b$2gd1@imsp212.netvigator.com>... > >Hello, > > > > I am now testing Informix-dynamic server 9.2 for > > Sun Solaris 8, I have something can not understand > > for Solaris 8. > > > > (1) I used raw device /dev/rdsk/c0t1d0s0 (2GB, for rootdb) > > /dev/rdsk/c0t1d0s1 (2GB, for > >additioanl chunk) > > > > (2) after I initialized the rootdb using onmonitor, the > > partition of /dev/rdsk/c0t1d0s0 disappeared. (partition crupt, > > partition crash) > > > > (3) I used the format utility of solaris 8 to partition the > > disk. > > > > Can anybody tell me how to use raw device in Sun Solaris 8 (Sparc)? > > > > > > Thanks for your help. > > > > > >