HP AiO400r HP StorageWorks All-in-One Storage System User Guide (440583-005, F - Page 72
provides a brief description of the items you can modify, Notes, Description
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Table 19 provides a brief description of the items you can modify: Table 19 Advanced window items Item Description Notes You are prevented from setting the size below 15 MB. After the allocated storage space is full (100 percent used), no further data can be stored to the space until you increase the size using the Size The amount of storage that ASM allocates to the application component, user-defined application, or shared folder you are configuring. Allocate Space Wizard. The only exception is for shared folders and local storage applications without an enforced allocated limit. If there is unused storage space on the logical disk where a component without an enforced allocated limit resides, data can be written to the component until the logical disk is full. RAID Level Hard drive formatting that provides different levels of performance, capacity, and data protection. For more information about RAID levels, see Customizing RAID levels on page 73.* RAID Stripe Size The number of bytes or kilobytes of data in each RAID stripe (block of data). The RAID stripe size selected affects performance. For the best performance, select the stripe size closest to the size of the files being saved. ASM provides the following general values: small (8 kB), medium (16 kB), and large (64 kB).* Percent Full Warning Threshold The percent full value that when reached changes the storage status to Warning and issues a warning alert. The warning indicates that storage use has surpassed the percentage full value. For example, if you enter 75%, you see a warning (yellow asterisk) in the content pane when storage is at 75 percent full. The percent full warning threshold is set by default to 80%. Percent full warning threshold values are ASM-specific; percent full warning threshold values selected in the Quota Management MMC snap-in are not adopted by ASM. All other Quota Management MMC snap-in settings are adopted by ASM. See Setting a percent full warning threshold on page 74. Exclusive Storage Data is stored on hard drives dedicated to storing only the data for the application component, user-defined application, or shared folder you are configuring. The number of hard drives dedicated depends on the allocated space size and other advanced storage configuration settings selected for the item you are configuring. Exclusive storage is recommended for some applications for the storage of specific types of data. For Exchange and SQL Server, ASM default values specify exclusive storage for log files, which according to storage best practices, should be isolated from other application storage areas.* Enforce Allocated Limit (Quota) Sets an enforced quota for the amount of storage available to a shared folder or local storage This item is available for shared folders and local storage component. See Enforcing an 72 Hosting storage for applications and shared folders