HP StorageWorks MSA1510i HP Storage Management Utility user guide (383075-002, - Page 18

guring the storage, remember to, Verify that each initiator has been granted access to the target.

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(MPIO multipathing software, etc.) in the configuration. Configure targets using portals on each controller. • Create fault-tolerant logical storage units-Create LUNs using fault-tolerant RAID levels and striping methods. • When assigning system names and aliases, use only the following characters: • Uppercase alpha characters (A-Z) • Lowercase alpha characters (a-z) • Numeric characters (0-9) • Special characters and space) • When accessing the SMU, expand the browser to full screen or a minimum size of 1024 x 768 pixels. Other settings may distort the display or cause items to not display. • When planning and configuring logical drives: • Optimize performance and redundancy by striping the drives in the array across separate storage enclosures on different SCSI buses, especially in mirrored environments using RAID 1+0. • Set the drive rebuild priority to high to minimize exposure during a drive failure. • Customize the RAID level and striping method to the type of data that will be stored on the logical drive. NOTE: Depending on the number of physical hard drives included in a storage unit, the SMU may suggest RAID 6 (ADG) as the default RAID level, which offers a high level of fault tolerance and usable disk capacity, but at a significant cost to I/O performance. For comparable fault tolerance but higher performance, consider using RAID 1+0 when fault tolerance is desired and performance is more important than usable capacity. Reserve RAID 6 (ADG) for situations when fault tolerance is desired, but usable capacity is more important than performance. • After configuring the storage, remember to: • Verify that each initiator has been granted access to the target. • Control access to the storage through the use of VLANs, CHAP authentication, and ACLs. • Draw physical and logical diagrams of your network: • Hardware/device diagram-Physical layout of the entire network, including device names and cabling. • Storage diagram-Hard drive and storage system configuration, including RAID levels. • Path/Accessibility diagram-Access information, including which devices are allowed to communicate with each other. 18 Overview

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(MPIO multipathing software, etc.) in the con
fi
guration. Con
fi
gure targets using portals
on each controller.
•
Create fault-tolerant logical storage units—Create LUNs using fault-tolerant RAID levels and
striping methods.
•
When assigning system names and aliases, use only the following characters:
•
Uppercase alpha characters (A-Z)
•
Lowercase alpha characters (a-z)
•
Numeric characters (0-9)
•
Special characters (! # = ( ) ‘ ; , . and space)
•
When accessing the SMU, expand the browser to full screen or a minimum size of 1024 x 768
pixels. Other settings may distort the display or cause items to not display.
•
When planning and con
fi
guring logical drives:
•
Optimize performance and redundancy by striping the drives in the array across separate
storage enclosures on different SCSI buses, especially in mirrored environments using
RAID 1+0.
•
Set the drive rebuild priority to
high
to minimize exposure during a drive failure.
•
Customize the RAID level and striping method to the type of data that will be stored on the
logical drive.
NOTE:
Depending on the number of physical hard drives included in a storage unit, the SMU may suggest
RAID 6 (ADG) as the default RAID level, which offers a high level of fault tolerance and usable disk
capacity, but at a signi
fi
cant cost to I/O performance. For comparable fault tolerance but higher
performance, consider using RAID 1+0 when fault tolerance is desired and performance is more
important than usable capacity. Reserve RAID 6 (ADG) for situations when fault tolerance is desired,
but usable capacity is more important than performance.
•
After con
fi
guring the storage, remember to:
•
Verify that each initiator has been granted access to the target.
•
Control access to the storage through the use of VLANs, CHAP authentication, and ACLs.
•
Draw physical and logical diagrams of your network:
•
Hardware/device diagram—Physical layout of the entire network, including device names
and cabling.
•
Storage diagram—Hard drive and storage system con
fi
guration, including RAID levels.
•
Path/Accessibility diagram—Access information, including which devices are allowed to
communicate with each other.
18
Overview