LVM \u4f7f\u7528\u7684\u57fa\u672c\u6982\u5ff5\u5305\u62ec\u7269\u7406\u5377\u3001\u5377\u7d44\u3001\u7269\u7406\u5206\u5340\u3001\u908f\u8f2f\u5377\u3001\u908f\u8f2f\u5206\u5340\u3001\u6587\u4ef6\u7cfb\u7d71\u548c\u539f\u59cb\u8a2d\u5099\u3002\u4e0b\u9762\u4ecb\u7d39\u5b83\u5011\u7684\u58f9\u4e9b\u7279\u5f81\uff1a<\/p>\n
\u6bcf\u500b\u55ae\u7368\u7684\u78c1\u76e4\u9a45\u52d5\u5668\u662f\u58f9\u500b\u547d\u540d\u7684\u7269\u7406\u5377 (PV)\uff0c\u4e26\u5177\u6709\u8af8\u5982 hdisk0 \u6216 hdisk1 \u7b49\u540d\u7a31\u3002\u58f9\u500b\u6216\u591a\u500b PV \u53ef\u4ee5\u69cb\u6210\u58f9\u500b\u5377\u7d44 (VG)\u3002\u58f9\u500b\u7269\u7406\u5377\u6700\u591a\u53ea\u80fd\u5c6c\u65bc\u58f9\u500b VG\u3002 \u4e0d\u80fd\u5c07\u67d0\u500b PV \u7684\u58f9\u90e8\u5206\u5206\u914d\u5230\u58f9\u500b VG\u3002\u58f9\u500b\u7269\u7406\u5377\u6574\u9ad4\u5730\u5206\u914d\u5230\u67d0\u500b\u5377\u7d44\u3002 \u5373\u4f7f\u7269\u7406\u5377\u5c6c\u65bc\u4e0d\u540c\u7684\u985e\u578b\uff0c\u4f8b\u5982 SCSI \u6216 SSA\uff0c\u4e5f\u53ef\u4ee5\u5c07\u5b83\u5011\u5206\u914d\u5230\u540c\u58f9\u500b\u5377\u7d44\u3002
\n\u7269\u7406\u5377\u4e2d\u7684\u5b58\u5132\u7a7a\u9593\u5283\u5206\u70ba\u7269\u7406\u5206\u5340 (PP)\u3002\u5728\u5c6c\u65bc\u540c\u58f9\u500b VG \u7684\u6240\u6709\u78c1\u76e4\u4e0a\uff0c\u7269\u7406\u5206\u5340\u7684\u5927\u5c0f\u5b8c\u5168\u76f8\u540c\u3002<\/p>\n
\u5728\u6bcf\u500b\u5377\u7d44\u4e2d\uff0c\u53ef\u4ee5\u5b9a\u7fa9\u58f9\u500b\u6216\u591a\u500b\u908f\u8f2f\u5377 (LV)\u3002\u5f9e\u7528\u6236\u7684\u89d2\u5ea6\u770b\uff0c\u908f\u8f2f\u5377\u4e0a\u5b58\u5132\u7684\u6578\u64da\u4f3c\u4e4e\u662f\u9023\u7e8c\u7684\uff0c\u4f46\u662f\u53ef\u4ee5\u5206\u6563\u5728\u540c\u58f9\u500b\u5377\u7d44\u4e2d\u7684\u4e0d\u540c\u7269\u7406\u5377\u4e0a\u3002
\n\u908f\u8f2f\u5377\u7531\u58f9\u500b\u6216\u591a\u500b\u908f\u8f2f\u5206\u5340 (LP) \u7d44\u6210\u3002\u6bcf\u500b\u908f\u8f2f\u5206\u5340\u81f3\u5c11\u6709\u58f9\u500b\u5c0d\u61c9\u7684\u7269\u7406\u5206\u5340\u3002\u58f9\u500b\u908f\u8f2f\u5206\u5340\u548c\u58f9\u500b\u7269\u7406\u5206\u5340\u59cb\u7d42\u5177\u6709\u76f8\u540c\u7684\u5927\u5c0f\u3002\u6700\u591a\u53ef\u4ee5\u5c07\u6578\u64da\u7684\u4e09\u500b\u526f\u672c\u5b9a\u4f4d\u5728\u4e0d\u540c\u7684\u7269\u7406\u5206\u5340\u4e0a\u3002\u901a\u5e38\uff0c\u70ba\u4e86\u5be6\u73fe\u5197\u4f59\uff0c\u5c07\u5b58\u5132\u76f8\u540c\u6578\u64da\u7684\u7269\u7406\u5206\u5340\u5b9a\u4f4d\u5728\u4e0d\u540c\u7684\u7269\u7406\u78c1\u76e4\u4e0a\u3002
\n\u908f\u8f2f\u5377\u4e2d\u7684\u6578\u64da\u53ef\u4ee5\u6309\u6709\u7d44\u7e54\u7684\u65b9\u5f0f\u9032\u884c\u5b58\u5132\uff0c\u4e26\u5177\u6709\u4f4d\u65bc\u6709\u76ee\u9304\u4e2d\u7684\u6587\u4ef6\u7684\u5f62\u5f0f\u3002\u9019\u7a2e\u7d50\u69cb\u5316\u548c\u5c64\u6b21\u6027\u7684\u7d44\u7e54\u5f62\u5f0f\u7a31\u70ba\u6587\u4ef6\u7cfb\u7d71\u3002<\/p>\n
\u9084\u53ef\u4ee5\u5c07\u908f\u8f2f\u5377\u4e2d\u7684\u6578\u64da\u8996\u70ba\u58f9\u500b\u9023\u7e8c\u7684\u5b57\u7bc0\u4e32\u3002\u6b64\u985e\u908f\u8f2f\u5377\u7a31\u70ba\u539f\u59cb\u908f\u8f2f\u5377\u3002\u4f7f\u7528\u8a72\u6578\u64da\u4ee5\u6b63\u78ba\u5730\u8a2a\u554f\u548c\u89e3\u91cb\u5b83\u662f\u61c9\u7528\u7a0b\u5e8f\u7684\u8cac\u4efb\u3002\u5377\u7d44\u63cf\u8ff0\u7b26\u5340\u57df (VGDA) \u662f\u78c1\u76e4\u4e0a\u7684\u58f9\u500b\u5340\u57df\uff0c\u5176\u4e2d\u5305\u542b\u6709\u95dc\u8a72\u7269\u7406\u5377\u6240\u5728\u7684\u5377\u7d44\u7684\u4fe1\u606f\u3002\u5b83\u9084\u5305\u62ec\u6709\u95dc\u5c6c\u65bc\u8a72\u5377\u7d44\u7684\u6240\u6709\u7269\u7406\u548c\u908f\u8f2f\u5377\u7684\u5c6c\u6027\u548c\u72c0\u614b\u7684\u4fe1\u606f\u3002VGDA \u4e2d\u7684\u4fe1\u606f\u7531 LVM \u547d\u4ee4\u4f7f\u7528\u548c\u66f4\u65b0\u3002\u6bcf\u500b\u7269\u7406\u5377\u81f3\u5c11\u6709\u58f9\u500b VGDA\u3002\u5c6c\u65bc\u540c\u58f9\u500b\u5377\u7d44\u7684\u6240\u6709\u78c1\u76e4\u7684 VGDA \u4e2d\u7684\u4fe1\u606f\u5fc5\u9808\u5b8c\u5168\u76f8\u540c\u3002VGDA \u7684\u5167\u90e8\u9ad4\u7cfb\u7d50\u69cb\u53ca\u5176\u5728\u78c1\u76e4\u4e0a\u7684\u4f4d\u7f6e\u53d6\u6c7a\u65bc\u5377\u7d44\u7684\u985e\u578b\uff08\u539f\u59cb\u3001\u5927\u5bb9\u91cf\u6216\u53ef\u64f4\u5c55\uff09\u3002
\n\u00a0
\n\u5377\u7d44\u72c0\u614b\u5340\u57df (VGSA) \u7528\u65bc\u63cf\u8ff0\u5377\u7d44\u4e2d\u6240\u6709\u7269\u7406\u5377\u4e2d\u7684\u6240\u6709\u7269\u7406\u5206\u5340\u7684\u72c0\u614b\u3002VGSA \u6307\u793a\u67d0\u500b\u7269\u7406\u5206\u5340\u662f\u5305\u542b\u6e96\u78ba\u9084\u662f\u904e\u6642\u7684\u4fe1\u606f\u3002VGSA \u7528\u65bc\u76e3\u8996\u548c\u7dad\u8b77\u6578\u64da\u526f\u672c\u540c\u6b65\u3002VGSA \u672c\u8cea\u4e0a\u662f\u58f9\u500b\u4f4d\u5716\uff0c\u5176\u9ad4\u7cfb\u7d50\u69cb\u548c\u5728\u78c1\u76e4\u4e0a\u7684\u4f4d\u7f6e\u53d6\u6c7a\u65bc\u5377\u7d44\u7684\u985e\u578b\u3002
\n\u00a0
\n\u908f\u8f2f\u5377\u63a7\u5236\u584a (LVCB) \u5305\u542b\u6709\u95dc\u908f\u8f2f\u5377\u7684\u91cd\u8981\u4fe1\u606f\uff0c\u4f8b\u5982\u908f\u8f2f\u5206\u5340\u6578\u91cf\u6216\u78c1\u76e4\u5206\u914d\u7b56\u7565\u3002\u5176\u9ad4\u7cfb\u7d50\u69cb\u548c\u5728\u78c1\u76e4\u4e0a\u7684\u4f4d\u7f6e\u53d6\u6c7a\u65bc\u5b83\u6240\u5728\u7684\u5377\u7d44\u7684\u985e\u578b\u3002\u5c0d\u65bc\u6a19\u6e96\u5377\u7d44\uff0cLVCB \u99d0\u7559\u5728 LV \u4e2d\u7684\u7b2c\u58f9\u500b\u7528\u6236\u6578\u64da\u584a\u4e0a\u3002\u5c0d\u65bc\u5927\u5bb9\u91cf\u5377\u7d44\uff0c\u78c1\u76e4\u4e0a\u7684 VGDA \u4e2d\u5b58\u5728\u984d\u5916\u7684 LVCB \u4fe1\u606f\u3002\u5c0d\u65bc\u53ef\u64f4\u5c55\u5377\u7d44\uff0c\u6240\u6709\u7684\u76f8\u95dc\u908f\u8f2f\u5377\u63a7\u5236\u4fe1\u606f\u90fd\u4f5c\u70ba LVCB \u4fe1\u606f\u5340\u57df\u548c LV \u5165\u53e3\u5340\u57df\u7684\u58f9\u90e8\u5206\u4fdd\u7559\u5728 VGDA \u4e2d\u3002<\/p>\n
\u8a3b\u610f\uff1a\u786c\u76e4\u9a45\u52d5\u5668\u7684\u5e03\u5c40\u662f\u7531 \/usr\/include\/sys\/hd_psn.h \u982d\u6587\u4ef6\u5b9a\u7fa9\u7684\u3002LVM \u8a18\u9304\u5f9e\u78c1\u76e4\u4e0a\u7684\u7b2c 7 \u500b\u6247\u5340\u958b\u59cb\u3002\u6240\u6709 LVM \u8a18\u9304\u7d50\u69cb\u90fd\u662f\u5728 \/usr\/include\/lvmrec.h \u982d\u6587\u4ef6\u4e2d\u5b9a\u7fa9\u7684\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
LVM \u4f7f\u7528\u7684\u57fa\u672c\u6982\u5ff5\u5305\u62ec\u7269\u7406\u5377\u3001\u5377\u7d44\u3001\u7269\u7406\u5206\u5340\u3001\u908f\u8f2f\u5377\u3001\u908f\u8f2f\u5206\u5340\u3001\u6587\u4ef6\u7cfb\u7d71\u548c\u539f\u59cb\u8a2d\u5099\u3002\u4e0b\u9762\u4ecb\u7d39\u5b83\u5011\u7684\u58f9\u4e9b\u7279\u5f81\uff1a \u6bcf\u500b\u55ae\u7368\u7684\u78c1\u76e4\u9a45\u52d5\u5668\u662f\u58f9\u500b\u547d\u540d\u7684\u7269\u7406\u5377 (PV)\uff0c\u4e26\u5177\u6709\u8af8\u5982 hdisk0 \u6216 hdisk1 \u7b49\u540d\u7a31\u3002\u58f9\u500b\u6216\u591a\u500b PV \u53ef\u4ee5\u69cb\u6210\u58f9\u500b\u5377\u7d44 (VG)\u3002\u58f9\u500b\u7269\u7406\u5377\u6700\u591a\u53ea\u80fd\u5c6c\u65bc\u58f9\u500b VG\u3002 \u4e0d\u80fd\u5c07\u67d0\u500b PV \u7684\u58f9\u90e8\u5206\u5206\u914d\u5230\u58f9\u500b VG\u3002\u58f9\u500b\u7269\u7406\u5377\u6574\u9ad4\u5730\u5206\u914d\u5230\u67d0\u500b\u5377\u7d44\u3002 \u5373\u4f7f\u7269\u7406\u5377\u5c6c\u65bc\u4e0d\u540c\u7684\u985e\u578b\uff0c\u4f8b\u5982 SCSI \u6216 SSA\uff0c\u4e5f\u53ef\u4ee5\u5c07\u5b83\u5011\u5206\u914d\u5230\u540c\u58f9\u500b\u5377\u7d44\u3002 \u7269\u7406\u5377\u4e2d\u7684\u5b58\u5132\u7a7a\u9593\u5283\u5206\u70ba\u7269\u7406\u5206\u5340 (PP)\u3002\u5728\u5c6c\u65bc\u540c\u58f9\u500b VG \u7684\u6240\u6709\u78c1\u76e4\u4e0a\uff0c\u7269\u7406\u5206\u5340\u7684\u5927\u5c0f\u5b8c\u5168\u76f8\u540c\u3002 \u5728\u6bcf\u500b\u5377\u7d44\u4e2d\uff0c\u53ef\u4ee5\u5b9a\u7fa9\u58f9\u500b\u6216\u591a\u500b\u908f\u8f2f\u5377 (LV)\u3002\u5f9e\u7528\u6236\u7684\u89d2\u5ea6\u770b\uff0c\u908f\u8f2f\u5377\u4e0a\u5b58\u5132\u7684\u6578\u64da\u4f3c\u4e4e\u662f\u9023\u7e8c\u7684\uff0c\u4f46\u662f\u53ef\u4ee5\u5206\u6563\u5728\u540c\u58f9\u500b\u5377\u7d44\u4e2d\u7684\u4e0d\u540c\u7269\u7406\u5377\u4e0a\u3002 \u908f\u8f2f\u5377\u7531\u58f9\u500b\u6216\u591a\u500b\u908f\u8f2f\u5206\u5340 (LP) \u7d44\u6210\u3002\u6bcf\u500b\u908f\u8f2f\u5206\u5340\u81f3\u5c11\u6709\u58f9\u500b\u5c0d\u61c9\u7684\u7269\u7406\u5206\u5340\u3002\u58f9\u500b\u908f\u8f2f\u5206\u5340\u548c\u58f9\u500b\u7269\u7406\u5206\u5340\u59cb\u7d42\u5177\u6709\u76f8\u540c\u7684\u5927\u5c0f\u3002\u6700\u591a\u53ef\u4ee5\u5c07\u6578\u64da\u7684\u4e09\u500b\u526f\u672c\u5b9a\u4f4d\u5728\u4e0d\u540c\u7684\u7269\u7406\u5206\u5340\u4e0a\u3002\u901a\u5e38\uff0c\u70ba\u4e86\u5be6\u73fe\u5197\u4f59\uff0c\u5c07\u5b58\u5132\u76f8\u540c\u6578\u64da\u7684\u7269\u7406\u5206\u5340\u5b9a\u4f4d\u5728\u4e0d\u540c\u7684\u7269\u7406\u78c1\u76e4\u4e0a\u3002 \u908f\u8f2f\u5377\u4e2d\u7684\u6578\u64da\u53ef\u4ee5\u6309\u6709\u7d44\u7e54\u7684\u65b9\u5f0f\u9032\u884c\u5b58\u5132\uff0c\u4e26\u5177\u6709\u4f4d\u65bc\u6709\u76ee\u9304\u4e2d\u7684\u6587\u4ef6\u7684\u5f62\u5f0f\u3002\u9019\u7a2e\u7d50\u69cb\u5316\u548c\u5c64\u6b21\u6027\u7684\u7d44\u7e54\u5f62\u5f0f\u7a31\u70ba\u6587\u4ef6\u7cfb\u7d71\u3002 \u9084\u53ef\u4ee5\u5c07\u908f\u8f2f\u5377\u4e2d\u7684\u6578\u64da\u8996\u70ba\u58f9\u500b\u9023\u7e8c\u7684\u5b57\u7bc0\u4e32\u3002\u6b64\u985e\u908f\u8f2f\u5377\u7a31\u70ba\u539f\u59cb\u908f\u8f2f\u5377\u3002\u4f7f\u7528\u8a72\u6578\u64da\u4ee5\u6b63\u78ba\u5730\u8a2a\u554f\u548c\u89e3\u91cb\u5b83\u662f\u61c9\u7528\u7a0b\u5e8f\u7684\u8cac\u4efb\u3002\u5377\u7d44\u63cf\u8ff0\u7b26\u5340\u57df (VGDA) \u662f\u78c1\u76e4\u4e0a\u7684\u58f9\u500b\u5340\u57df\uff0c\u5176\u4e2d\u5305\u542b\u6709\u95dc\u8a72\u7269\u7406\u5377\u6240\u5728\u7684\u5377\u7d44\u7684\u4fe1\u606f\u3002\u5b83\u9084\u5305\u62ec\u6709\u95dc\u5c6c\u65bc\u8a72\u5377\u7d44\u7684\u6240\u6709\u7269\u7406\u548c\u908f\u8f2f\u5377\u7684\u5c6c\u6027\u548c\u72c0\u614b\u7684\u4fe1\u606f\u3002VGDA \u4e2d\u7684\u4fe1\u606f\u7531 LVM \u547d\u4ee4\u4f7f\u7528\u548c\u66f4\u65b0\u3002\u6bcf\u500b\u7269\u7406\u5377\u81f3\u5c11\u6709\u58f9\u500b VGDA\u3002\u5c6c\u65bc\u540c\u58f9\u500b\u5377\u7d44\u7684\u6240\u6709\u78c1\u76e4\u7684 VGDA \u4e2d\u7684\u4fe1\u606f\u5fc5\u9808\u5b8c\u5168\u76f8\u540c\u3002VGDA \u7684\u5167\u90e8\u9ad4\u7cfb\u7d50\u69cb\u53ca\u5176\u5728\u78c1\u76e4\u4e0a\u7684\u4f4d\u7f6e\u53d6\u6c7a\u65bc\u5377\u7d44\u7684\u985e\u578b\uff08\u539f\u59cb\u3001\u5927\u5bb9\u91cf\u6216\u53ef\u64f4\u5c55\uff09\u3002 \u00a0 \u5377\u7d44\u72c0\u614b\u5340\u57df (VGSA) \u7528\u65bc\u63cf\u8ff0\u5377\u7d44\u4e2d\u6240\u6709\u7269\u7406\u5377\u4e2d\u7684\u6240\u6709\u7269\u7406\u5206\u5340\u7684\u72c0\u614b\u3002VGSA \u6307\u793a\u67d0\u500b\u7269\u7406\u5206\u5340\u662f\u5305\u542b\u6e96\u78ba\u9084\u662f\u904e\u6642\u7684\u4fe1\u606f\u3002VGSA \u7528\u65bc\u76e3\u8996\u548c\u7dad\u8b77\u6578\u64da\u526f\u672c\u540c\u6b65\u3002VGSA \u672c\u8cea\u4e0a\u662f\u58f9\u500b\u4f4d\u5716\uff0c\u5176\u9ad4\u7cfb\u7d50\u69cb\u548c\u5728\u78c1\u76e4\u4e0a\u7684\u4f4d\u7f6e\u53d6\u6c7a\u65bc\u5377\u7d44\u7684\u985e\u578b\u3002 \u00a0 \u908f\u8f2f\u5377\u63a7\u5236\u584a (LVCB) \u5305\u542b\u6709\u95dc\u908f\u8f2f\u5377\u7684\u91cd\u8981\u4fe1\u606f\uff0c\u4f8b\u5982\u908f\u8f2f\u5206\u5340\u6578\u91cf\u6216\u78c1\u76e4\u5206\u914d\u7b56\u7565\u3002\u5176\u9ad4\u7cfb\u7d50\u69cb\u548c\u5728\u78c1\u76e4\u4e0a\u7684\u4f4d\u7f6e\u53d6\u6c7a\u65bc\u5b83\u6240\u5728\u7684\u5377\u7d44\u7684\u985e\u578b\u3002\u5c0d\u65bc\u6a19\u6e96\u5377\u7d44\uff0cLVCB \u99d0\u7559\u5728 LV \u4e2d\u7684\u7b2c\u58f9\u500b\u7528\u6236\u6578\u64da\u584a\u4e0a\u3002\u5c0d\u65bc\u5927\u5bb9\u91cf\u5377\u7d44\uff0c\u78c1\u76e4\u4e0a\u7684 VGDA 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