User manual ACER HDS AMS200 REFERENCE GUIDE

[. . . ] Acer | HDS AMS200 User and Reference Guide MK-95DF713-03 2006 Hitachi Data Systems Corporation, ALL RIGHTS RESERVED Notice: No part of this publication may be reproduced or transmitted in any form or by any electronic or mechanical means, including photocopying and recording, or stored in a database or retrieval system for any purpose without the express written permission of Hitachi Data Systems Corporation (hereinafter referred to as "Hitachi Data Systems"). Hitachi Data Systems reserves the right to make changes to this document at any time without notice and assumes no responsibility for its use. Hitachi Data Systems products and services can only be ordered under the terms and conditions of Hitachi Data Systems' applicable agreements. All of the features described in this document may not be currently available. [. . . ] Note: The logical unit number may be set optionally when the logical unit is created. However, the logical unit number 0 is assigned to the logical unit created first. After the setting is complete, click OK. The set logical unit information is updated and the window displays. Figure 7. 7 Setting the Logical Unit Dialog Box 7. 4. 6 Deleting the Last Logical Unit To delete the last logical unit, follow these steps: 1. Click the Logical Status tab on the Unit window. From the Unit window, select the icon of logical unit to be deleted. On the Settings menu, select Logical Unit and click Delete. NoteThe logical units being used in the NAS system may be unable to be deleted. A confirmation message displays indicating whether selected logical units should be deleted or not. Depending on whether the logical units to be deleted are formatted or not, the message description is different. The logical unit information in which the logical unit has been deleted is updated and the window displays. 144 Chapter 7 Configuring Storage on the Thunder 9530TM V Series Subsystem When no formatted logical unit exists: When formatted logical unit exists: Acer | HDS AMS200 User and Reference Guide 145 7. 4. 7 Formatting a Logical Unit Note 1: For the logical unit that is being formatted in the background, it is best to perform operations to the host installation. If a volatile failure for data in cache memory occurs due to subsystem power-off during formatting, the logical unit will be unformatted and data can be lost. Therefore, host installation operation should be performed from the first step for the logical unit. Note 2: When logical units are formatted, the user data will be initialized and completely deleted. Note 3: The RAID group is allocated to the NAS system LU when the NAS is connected; the user LU cannot be deleted without releasing the allocation. Note 4: Formatting will impact host access performance, especially on the logical unit being formatted and on the logical unit in the same RAID group as the logical unit being formatted. Perform formatting functions during off-hours with less host access. When formatting the logical unit in the same RAID group as NAS system LU, do not boot or reboot the NAS OS. This could result in boot failure or increase the boot time of NAS OS. Format This mode enables the subsystem to start its operation earlier by formatting the specified LU in the background to make it usable by a host. Up to 512 LUs can be specified for formatting. This number can also be increased; however, the number of LUs that can be simultaneously formatted in the background is six per CTL. [. . . ] RKAJ 1 30 2 45 3 60 4 75 5 90 6 105 15 (Max) 3D+2P 4D+2P 5D+2P 6D+2P 7D+2P 8D+2P 9D+2P 10D+2P 11D+2P 12D+2P 13D+2P 14D+2P 15D+2P 16D+2P 17D+2P 18D+2P 19D+2P 20D+2P 21D+2P 22D+2P 23D+2P 24D+2P 25D+2P 26D+2P 4 575. 25 5 862. 88 6 1150. 51 7 1438. 14 8 1725. 77 9 2013. 40 10 2301. 02 11 2588. 65 12 2876. 28 13 3163. 91 14 3451. 54 15 3739. 17 0 0. 00 0 0. 00 0 0. 00 0 0. 00 0 0. 00 0 0. 00 0 0. 00 0 0. 00 0 0. 00 0 0. 00 0 0. 00 0 0. 00 0 0. 00 12 1725. 77 15 2588. 65 12 2301. 02 14 2876. 28 8 1725. 77 9 2013. 40 10 2301. 02 11 2588. 65 12 2876. 28 13 3163. 91 14 3451. 54 15 3739. 17 0 0. 00 0 0. 00 0 0. 00 0 0. 00 0 0. 00 0 0. 00 0 0. 00 0 0. 00 0 0. 00 0 0. 00 0 0. 00 0 0. 00 0 0. 00 28 4026. 80 30 5177. 31 30 5752. 57 28 5752. 57 24 5177. 31 27 6040. 20 30 6903. 08 22 5177. 31 24 5752. 57 26 6327. 82 28 6903. 08 30 7478. 34 16 4026. 80 17 4314. 42 18 4602. 05 19 4889. 68 20 5177. 31 21 5464. 94 22 5752. 57 23 6040. 20 24 6327. 82 25 6615. 45 26 6903. 08 27 7190. 71 28 7478. 34 44 6327. 82 45 7765. 97 42 8053. 60 42 8628. 85 40 8628. 85 45 10067. 00 40 9204. 11 44 10354. 62 36 8628. 85 39 9491. 74 42 10354. 62 45 11217. 51 32 8053. 60 34 8628. 85 36 9204. 11 38 9779. 37 40 10354. 62 42 10929. 88 44 11505. 14 23 6040. 20 24 6327. 82 25 6615. 45 26 6903. 08 27 7190. 71 28 7478. 34 60 8628. 85 60 10354. 62 60 11505. 14 56 11505. 14 56 12080. 40 54 12080. 40 60 13806. 17 55 12943. 28 60 14381. 42 52 12655. 65 56 13806. 17 60 14956. 68 48 12080. 40 51 12943. 28 54 13806. 17 57 14669. 05 60 15531. 94 42 10929. 88 44 11505. 14 46 12080. 40 48 12655. 65 50 13230. 91 52 13806. 17 54 14381. 42 56 14956. 68 72 10354. 62 75 12943. 28 72 13806. 17 70 14381. 42 72 15531. 94 72 16107. 20 70 16107. 20 66 15531. 94 72 17257. 71 65 15819. 57 70 17257. 71 75 18695. 85 64 16107. 20 68 17257. 71 72 18408. 22 57 14669. 05 60 15531. 94 63 16394. 82 66 17257. 71 69 18120. 60 72 18983. 48 75 19846. 37 52 13806. 17 54 14381. 42 56 14956. 68 88 12655. 65 90 15531. 94 90 17257. 71 84 17257. 71 88 18983. 48 90 20134. 00 90 20709. 25 88 20709. 25 84 20134. 00 78 18983. 48 84 20709. 25 90 22435. 03 80 20134. 00 85 21572. 14 90 23010. 28 76 19558. 74 80 20709. 25 84 21859. 77 88 23010. 28 69 18120. 60 72 18983. 48 75 19846. 37 78 20709. 25 81 21572. 14 84 22435. 03 104 14956. 68 105 18120. 60 102 19558. 74 105 21572. 14 104 22435. 03 99 22147. 40 100 23010. 28 99 23297. 91 96 23010. 28 104 25311. 31 98 24160. 80 105 26174. 20 96 24160. 80 102 25886. 57 90 23010. 28 95 24448. 43 100 25886. 57 105 27324. 71 88 23010. 28 92 24160. 80 96 25311. 31 100 26461. 83 104 27612. 34 81 21572. 14 84 22435. 03 Acer | HDS AMS200 User and Reference Guide 339 Table F. 14 Disk capacity Component unit Range Total range of Disk drives 27D+2P List of Capacities Corresponding to RAID6 (300 Gbytes) (continued) 287. 6 G bytes RKS 1 Min. RKAJ 1 30 2 45 3 60 4 75 5 90 6 105 15 (Max) 28D+2P 0 0. 00 0 0 0 0. 00 0 0. 00 29 7765. 97 30 8053. 60 29 7765. 97 30 8053. 60 58 15531. 94 60 16107. 20 58 15531. 94 60 16107. 20 87 23297. 91 90 24160. 80 87 23297. 91 90 24160. 80 Table F. 15 Disk capacity Component unit Range Total range of Disk drives 2D+2D List of Capacities Corresponding to RAID1+0 (300 Gbytes) 287. 6 G bytes RKS 1 Min. RKAJ 1 30 2 45 3 60 4 75 5 90 6 105 15 (Max) 3D+3D 4D+4D 5D+5D 6D+6D 7D+7D 8D+8D 4 575. 25 6 862. 88 8 1150. 51 10 1438. 14 12 1725. 77 14 2013. 40 0 0. 00 12 1725. 77 12 1725. 77 8 1150. 51 10 1438. 14 12 1725. 77 14 2013. 40 0 0. 00 28 4026. 80 30 4314. 42 24 3451. 54 30 4314. 42 24 3451. 54 28 4026. 80 16 2301. 02 44 6327. 82 42 6040. 20 40 5752. 57 40 5752. 57 36 5177. 31 42 6040. 20 32 4602. 05 60 8628. 85 60 8628. 85 56 8053. 60 60 8628. 85 60 8628. 85 56 8053. 60 48 6903. 08 72 10354. 62 72 10354. 62 72 10354. 62 70 10067. 00 72 10354. 62 70 10067. 00 64 9204. 11 88 12655. 65 90 12943. 28 88 12655. 65 90 12943. 28 84 12080. 40 84 12080. 40 80 11505. 14 104 14956. 68 102 14669. 05 104 14956. 68 100 14381. 42 96 13806. 17 98 14093. 80 96 13806. 17 Table F. 16 Disk Capacity Component Unit Range Total Range of Disk Drives 1D+1D List of Capacities Corresponding to RAID1 (250 Gbytes) 245. 7 G bytes RKAJAT 1 Min. 15 (Max) 2 30 3 45 4 60 5 75 6 90 2 245. 74 14 1720. 22 30 3686. 18 44 5406. 41 60 7372. 37 74 9092. 59 90 11058. 56 340 Appendix F List of Storage Capacities Corresponding to RAID Levels and Configurations Table F. 17 Disk capacity Component unit Range Total range of Disk drives 2D+1P List of Capacities Corresponding to RAID5 (250 Gbytes) 245. 7 G bytes RKAJAT 1 Min. 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