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HowTo: Linux List Disk Partitions Command

How do I list all hard disk partitions under Linux operating systems?
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Maximum Number of Disks In RAID 5

Is there a limit to how many drives you can have in one RAID-5? What is the maximum number of physical drives recommended in a RAID-5 set?
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I can use the smartctl -d ata -a /dev/sdb to read hard disk health status directly connected to my system. But, how do I read smartctl command to check disk SAS / SCSI behind Adaptec RAID controller from the shell prompt?
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How do I reload the partition table in Ubuntu Linux without rebooting the systems?
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Solaris UNIX: Display LUNs

How do I display LUNs under Solaris UNIX version 10 or earlier?
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How do I find out the make, model and serial number for my SCSI or IDE hard disks under CentOS Linux server? How do I get vendor information about my disk storage w/o opening my Intel / AMD server chassis?
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OpenBSD Mount And Use a USB Flash Drive

How do I mount and use a USB pen or hard disk under OpenBSD operating systems using ksh/bash/sh shell prompt?
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