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RAID 5 - IDS 7.30 - NT 4.0

Posted in 2000

Topics: Installation, Setup & Upgrades, Storage & Space Management, Versions, Editions & End-of-Life

Thiel Franky — — source: Informix-list mailing list archive (1991-1998)

We have to reinstall a Nt server into RAID 5 situation. We use IDS 7.30 TC 5 on NT 4.0. In the past we had 1 NT server with 4 disks. Disk 1 (NT + software) Disk 2 tables disk 2 + indexes tables disk 4 Disk 3 tables disk 3 + indexes tables disk 2 Disk 4 tables disk 4 + indexes tables disk 3 Now the server must be reinstalled : Disk 1 (NT + software) DISK 2 = disk 2 + disk 3 + disk 4 (RAID 5) In the past I had a sutation where all the tables of one disk were located in one dbspace and on that disk. With my RAID 5, I cannot tell Informix anymore that my data is in tablespace 2 and my indexes are in tablespace 4. It's all 1 disk. Does anyone have any experience with these things. Please let me know. Franky mailto:franky.thiel@infohos.be

↪ replying to Thiel Franky
Art S. Kagel — — source: Informix-list mailing list archive (1991-1998)

Thiel Franky wrote: > > We have to reinstall a Nt server into RAID 5 situation. > We use IDS 7.30 TC 5 on NT 4.0. AAAAAAAAAAAAHHHHHHHHHHHHHHH!!!!!!!!!!!!!!! NO RAID 5! NO RAID 5! NO RAID 5! NO RAID 5! NO RAID 5! NO RAID 5! > In the past we had 1 NT server with 4 disks. > > Disk 1 (NT + software) > Disk 2 tables disk 2 + indexes tables disk 4 > Disk 3 tables disk 3 + indexes tables disk 2 > Disk 4 tables disk 4 + indexes tables disk 3 > > Now the server must be reinstalled : > > Disk 1 (NT + software) > DISK 2 = disk 2 + disk 3 + disk 4 (RAID 5) OK so? > In the past I had a sutation where all the tables of one disk were located > in one dbspace and on that disk. > > With my RAID 5, I cannot tell Informix anymore that my data is in tablespace > 2 and my indexes are in tablespace 4. It's all 1 disk. If you were using files, just create files, if you were using disks just partition the RAID5 set and use partitions. > Does anyone have any experience with these things. Yup all bad. Art S. Kagel

↪ replying to Thiel Franky
Watawinona — — source: Informix-list mailing list archive (1991-1998)

>Subject: RAID 5 - IDS 7.30 - NT 4.0 >From: Thiel Franky franky.thiel@INFOHOS.BE >Date: 02.05.00 13:12 W. Europe Daylight Time >Message-id: <8emf4i$iq8$1@news.xmission.com> > > >We have to reinstall a Nt server into RAID 5 situation. >We use IDS 7.30 TC 5 on NT 4.0. > >In the past we had 1 NT server with 4 disks. > >Disk 1 (NT + software) >Disk 2 tables disk 2 + indexes tables disk 4 >Disk 3 tables disk 3 + indexes tables disk 2 >Disk 4 tables disk 4 + indexes tables disk 3 > >Now the server must be reinstalled : > >Disk 1 (NT + software) >DISK 2 = disk 2 + disk 3 + disk 4 (RAID 5) > >In the past I had a sutation where all the tables of one disk were located >in one dbspace and on that disk. > >With my RAID 5, I cannot tell Informix anymore that my data is in tablespace >2 and my indexes are in tablespace 4. It's all 1 disk. > >Does anyone have any experience with these things. > > >Please let me know. > >Franky > >mailto:franky.thiel@infohos.be > > > yes, lots of negative experiences with RAID 5. For best results, buy more disks and mirror some of the data as appropriate. Your users will thank you for not using RAID 5. Nona

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