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--- oracle_exadata_storage_config [2020/12/04 12:58] – andonovj
+++ oracle_exadata_storage_config [2020/12/04 13:02] (current) – andonovj
@@ Line 346: / Line 346: @@
 CellCLI>
 </Code>
-===Flash Based===
-The flash based modules, can be examined as the hard disk based ones:
-==List the cell disks==
-<Code:bash>
---Basic
-CellCLI> list celldisk where disktype=flashdisk
-	 FD_00_qr01celadm01	 normal
-	 FD_01_qr01celadm01	 normal
-	 FD_02_qr01celadm01	 normal
-	 FD_03_qr01celadm01	 normal
---Detail
-CellCLI> list flashcache detail
-	 name:              	 qr01celadm01_FLASHCACHE
-	 cellDisk:          	 FD_02_qr01celadm01,FD_03_qr01celadm01,FD_01_qr01celadm01,FD_00_qr01celadm01
-	 creationTime:      	 2020-11-29T02:43:46+00:00
-	 degradedCelldisks:
-	 effectiveCacheSize:	 1.0625G
-	 id:                	 7fcc1eac-2214-40a1-9f27-eb988ec75340
-	 size:              	 1.0625G
-	 status:            	 normal
-CellCLI>
-</Code>
-Apart from the flashdisk, the exadata has also flashlog, to improve the redo log latency.
-==Flash log==
-<Code:bash>
---Detail
-CellCLI> list flashlog detail
-	 name:              	 qr01celadm01_FLASHLOG
-	 cellDisk:          	 FD_01_qr01celadm01,FD_03_qr01celadm01,FD_00_qr01celadm01,FD_02_qr01celadm01
-	 creationTime:      	 2020-11-29T02:43:44+00:00
-	 degradedCelldisks:
-	 effectiveSize:     	 256M
-	 efficiency:        	 100.0
-	 id:                	 1bb5db75-8136-4952-9d20-bec44a303a17
-	 size:              	 256M
-	 status:            	 normal
-CellCLI>
---Content
-CellCLI> list flashcachecontent detail
-...
-cachedKeepSize: 0
-cachedSize: 262144
-cachedWriteSize: 0
-columnarCacheSize: 0
-columnarKeepSize: 0
-dbID: 2080757153
-dbUniqueName: DBM
-hitCount: 11345
-missCount: 9
-objectNumber: 4294967294
-tableSpaceNumber: 0
-</Code>
-==Drop/Create Flash Cache==
-We can use the distributed CLI interface, provided with the exadata: "dcli" to run a command on multiple storage cells:
-<Code:bash>
---Drop Flash Cache:
-[celladmin@qr01celadm01 ~]$ dcli -c qr01celadm01,qr01celadm02,qr01celadm03 cellcli -e drop flashcache
-qr01celadm01: Flash cache qr01celadm01_FLASHCACHE successfully dropped
-qr01celadm02: Flash cache qr01celadm02_FLASHCACHE successfully dropped
-qr01celadm03: Flash cache qr01celadm03_FLASHCACHE successfully dropped
-[celladmin@qr01celadm01 ~]$
---Create Flash Cache
-[celladmin@qr01celadm01 ~]$ dcli -c qr01celadm01,qr01celadm02,qr01celadm03 cellcli -e create flashcache all
-qr01celadm01: Flash cache qr01celadm01_FLASHCACHE successfully created
-qr01celadm02: Flash cache qr01celadm02_FLASHCACHE successfully created
-qr01celadm03: Flash cache qr01celadm03_FLASHCACHE successfully created
-[celladmin@qr01celadm01 ~]$
-</Code>
 ====Stop / Start Cell Services====
@@ Line 912: / Line 829: @@
 ====Management====
+The flash based modules, can be examined as the hard disk based ones:
+==List the cell disks==
+<Code:bash>
+--Basic
+CellCLI> list celldisk where disktype=flashdisk
+	 FD_00_qr01celadm01	 normal
+	 FD_01_qr01celadm01	 normal
+	 FD_02_qr01celadm01	 normal
+	 FD_03_qr01celadm01	 normal
+--Detail
+CellCLI> list flashcache detail
+	 name:              	 qr01celadm01_FLASHCACHE
+	 cellDisk:          	 FD_02_qr01celadm01,FD_03_qr01celadm01,FD_01_qr01celadm01,FD_00_qr01celadm01
+	 creationTime:      	 2020-11-29T02:43:46+00:00
+	 degradedCelldisks:
+	 effectiveCacheSize:	 1.0625G
+	 id:                	 7fcc1eac-2214-40a1-9f27-eb988ec75340
+	 size:              	 1.0625G
+	 status:            	 normal
+CellCLI>
+</Code>
+Apart from the flashdisk, the exadata has also flashlog, to improve the redo log latency.
+==Flash log==
+<Code:bash>
+--Detail
+CellCLI> list flashlog detail
+	 name:              	 qr01celadm01_FLASHLOG
+	 cellDisk:          	 FD_01_qr01celadm01,FD_03_qr01celadm01,FD_00_qr01celadm01,FD_02_qr01celadm01
+	 creationTime:      	 2020-11-29T02:43:44+00:00
+	 degradedCelldisks:
+	 effectiveSize:     	 256M
+	 efficiency:        	 100.0
+	 id:                	 1bb5db75-8136-4952-9d20-bec44a303a17
+	 size:              	 256M
+	 status:            	 normal
+CellCLI>
+--Content
+CellCLI> list flashcachecontent detail
+...
+cachedKeepSize: 0
+cachedSize: 262144
+cachedWriteSize: 0
+columnarCacheSize: 0
+columnarKeepSize: 0
+dbID: 2080757153
+dbUniqueName: DBM
+hitCount: 11345
+missCount: 9
+objectNumber: 4294967294
+tableSpaceNumber: 0
+</Code>
+==Drop/Create Flash Cache==
+We can use the distributed CLI interface, provided with the exadata: "dcli" to run a command on multiple storage cells:
+<Code:bash>
+--Drop Flash Cache:
+[celladmin@qr01celadm01 ~]$ dcli -c qr01celadm01,qr01celadm02,qr01celadm03 cellcli -e drop flashcache
+qr01celadm01: Flash cache qr01celadm01_FLASHCACHE successfully dropped
+qr01celadm02: Flash cache qr01celadm02_FLASHCACHE successfully dropped
+qr01celadm03: Flash cache qr01celadm03_FLASHCACHE successfully dropped
+[celladmin@qr01celadm01 ~]$
+--Create Flash Cache
+[celladmin@qr01celadm01 ~]$ dcli -c qr01celadm01,qr01celadm02,qr01celadm03 cellcli -e create flashcache all
+qr01celadm01: Flash cache qr01celadm01_FLASHCACHE successfully created
+qr01celadm02: Flash cache qr01celadm02_FLASHCACHE successfully created
+qr01celadm03: Flash cache qr01celadm03_FLASHCACHE successfully created
+[celladmin@qr01celadm01 ~]$
+</Code>
 ===Drop Flash Cache===
 We can drop the flash cache only after, we have to stop the cluster.