Messages in this thread | | | Date | Wed, 7 Mar 2001 22:20:25 -0300 (BRT) | From | Marcelo Tosatti <> | Subject | Re: Questions about Enterprise Storage with Linux |
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On Wed, 7 Mar 2001, Jesse Pollard wrote:
> On Wed, 07 Mar 2001, Tom Sightler wrote: > >Hi All, > > > >I'm seeking information in regards to a large Linux implementation we are > >planning. We have been evaluating many storage options and I've come up > >with some questions that I have been unable to answer as far as Linux > >capabilities in regards to storage. > > > >We are looking at storage systems that provide approximately 1TB of capacity > >for now and can scale to 10+TB in the future. We will almost certainly use > >a storage system that provides both fiber channel connectivity as well as > >NFS connectivity. > > > >The questions that have been asked are as follows (assume 2.4.x kernels): > > > >1. What is the largest block device that linux currently supports? i.e. > >Can I create a single 1TB volume on my storage device and expect linux to > >see it and be able to format it? > > Checkout the GFS project for really large filesystems with a high capability > of "fail safe" configuration. > > The block/file limits are more determined by the size of the hosts. Alpha/Sparc > based systems use 64 bit operations, Intel/AMD use 32 bit. It also depends > on usage of the sign bit in the drivers. Most 32bit systems are limited > to 1 TB (depending on the driver of course - some allow for 2 TB).
Even on 64-bit architectures the hard upper limit is 2TB. (32-bit block numbers)
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