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Special Forums Hardware Filesystems, Disks and Memory calculating disk space for growth Post 302189299 by JTalbot017 on Friday 25th of April 2008 11:28:07 AM
Old 04-25-2008
Help

I am not familiar at all with calculating server space. I have a file server that has 3 18.2gb SCSI drives using RAID5. I know that the RAID rule is (n-1)/n * disk capacity (18.2gb) to calculate how much space is remaining on each drive after parity, but I just can't seem to get the numbers to work out with what I know we have currently. Is there something I am missing?

Specs:

3 - 18.2 gb SCSIs
C drive space: 24.1 gb
D drive space: 9.76 gb
**I can't figure out how these numbers are found**

I am trying to justify adding 2 more drives to the array because we are getting low on space, but I need to be able to calculate the gain in space.

HELP!!!
 

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install-solaris(1M)                                                                                                            install-solaris(1M)

NAME
install-solaris - install the Solaris operating system SYNOPSIS
install-solaris install-solaris invokes the Solaris Install program. Depending on graphical capability and available memory at the time of invocation, install-solaris invokes either a text-based installer or a graphical installer. The following minimum requirements for physical memory dictate which features are available during installation: For SPARC machines: 128 MB Minimum physical memory for all installation types 128 MB Minimum physical memory required for windowing system 384 MB Minimum physical memory required for graphical-based installation For x86 machines: 256 MB Minimum physical memory for all installation types 256 MB Minimum physical memory required for windowing system 512 MB Minimum physical memory required for graphical-based installation In some cases, even if the minimum physical memory is present, available virtual memory after system startup can limit the number of fea- tures available. install-solaris exists only on the Solaris installation media (CD or DVD) and should be invoked only from there. Refer to the for more details. install-solaris allows installation of the operating system onto any standalone system. install-solaris loads the software available on the installation media. Refer to the for disk space requirements. Refer to the for more information on the various menus and selections. See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcdrom (Solaris instal- | | |lation media) | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ pkginfo(1), install(1M), pkgadd(1M), attributes(5) It is advisable to exit install-solaris by means of the exit options in the install-solaris menus. 23 Sep 2005 install-solaris(1M)
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