Re: raw device dbspace size >2GB

Hazemb wrote: > would someone please tell me If I can make a raw device dbspace with size > larger than 2GBytes ?? > if I can't do this, pls. tell me why.. > the platform I'm using is sun solaris 2.5.1 with IDS 7.2 ... > > I used to think that I can format the disk into slices larger than 2GB (i.e. > 3GB) and use the first 2GB of the slice as one dbspace, and then use the last > 1GB in another dbspace with offset set to 2GB, unfortunately it didn't work > !!!! > > honestly I don't know why, and it's very frustrating since I had to use cocked > files instead or otherwise I would have wasted a lot of space since I was > limited by a max. number of partitions of 7 ( a UNIX constraint ). > Hazem, You can use a raw device size as large as the disk, whatever that may be. With raw disk 2GB is not a constraint. Not sure why your configration did not work. It may be worth checking that your offset is not 0 as it will overwrite the disk label and that the next offset does not overlap Rgds Paul Matthews

I thibk this is wrong - you CAN'T address more than 2GBytes of a disk with Informix. Although the OS supports 64-bit addressing, the relevant Informix utilities still have a 32-bit limitation. Thus the sum of size + offset must be less than 2GB, so even with offsets you can't use more than the first 2GBytes of a slice. Neil PaulITID.Matthews@chase.com wrote in message <7eken9$ibf$1@news.xmission.com>... > > > >Hazemb wrote: >> would someone please tell me If I can make a raw device dbspace with >size >> larger than 2GBytes ?? >> if I can't do this, pls. tell me why.. >> the platform I'm using is sun solaris 2.5.1 with IDS 7.2 ... >> >> I used to think that I can format the disk into slices larger than 2GB >(i.e. >> 3GB) and use the first 2GB of the slice as one dbspace, and then use the >last >> 1GB in another dbspace with offset set to 2GB, unfortunately it didn't >work >> !!!! >> >> honestly I don't know why, and it's very frustrating since I had to use >cocked >> files instead or otherwise I would have wasted a lot of space since I was >> limited by a max. number of partitions of 7 ( a UNIX constraint ). >> > >Hazem, > >You can use a raw device size as large as the disk, whatever that may be. >With raw disk 2GB is not a constraint. Not sure why your configration did >not work. It may be worth checking that your offset is not 0 as it will >overwrite the disk label and that the next offset does not overlap > >Rgds > >Paul Matthews > > >