From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jiang, Dave" Subject: Re: How does md(adm) work with fake-raid ? Date: Fri, 19 Jul 2013 15:58:06 +0000 Message-ID: <1374249486.26689.3.camel@djiang5-linux2.ch.intel.com> References: <51E86646.8020107@arcor.de> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: Content-Language: en-US Content-ID: Sender: linux-raid-owner@vger.kernel.org To: Dmitrijs Ledkovs Cc: "linux-raid@vger.kernel.org" List-Id: linux-raid.ids T24gVGh1LCAyMDEzLTA3LTE4IGF0IDIzOjM1ICswMDAwLCBEbWl0cmlqcyBMZWRrb3ZzIHdyb3Rl Og0KPiBPbiAxOCBKdWx5IDIwMTMgMjM6MDMsIE1hcnRpbiBXaWxjayA8bXdpbGNrQGFyY29yLmRl PiB3cm90ZToNCj4gPiBPbiAwNy8xOC8yMDEzIDEwOjM3IFBNLCBGcmFuY2lzIE1vcmVhdSB3cm90 ZToNCj4gPj4gSGVsbG8sDQo+ID4+DQo+ID4+IFNvcnJ5IGlmIHRoZSBxdWVzdGlvbiBpcyBzdHVw aWQgYnV0IEknbSBhIHJvb2tpZSBpbiBtZCB0aGluZ3MsIGJ1dCBJJ2QNCj4gPj4gbGlrZSB0byB1 bmRlcnN0YW5kIHRoZSBiaWcgcGljdHVyZSBoZXJlLg0KPiA+Pg0KPiA+PiBJJ3ZlIGJlZW4gdG9s ZCB0byB1c2UgbWRhZG0gd2hlbmV2ZXIgcG9zc2libGUgZXZlbiBpZiBteSByYWlkIGlzDQo+ID4+ IGhhbmRsZWQgYnkgdGhlIGJpb3MgKGZha2UgcmFpZCkgd2hpY2ggdXNlIHRoZSBkZGYgbWV0YWRh dGEgZm9ybWF0Lg0KPiA+PiAodW5mb3J0dW5hdGVseSBpdCBzZWVtcyB0aGF0IEkgY2FuJ3QgZGVz YWN0aXZlIHRoaXMgZmFrZSByYWlkIGluDQo+ID4+IGZhdm91ciBvZiBsaW51eCBzb2Z0IHJhaWQp LiBJdCdzIFJBSUQxIEJUVy4NCj4gPj4NCj4gPj4gU28gbXkgcXVlc3Rpb24gaXMgcmF0aGVyIHNp bXBsZTogaW4gbXkgdW5kZXJzdGFuZGluZyB0aGUgYmlvcyBpcyBkb2luZw0KPiA+PiB0aGUgbWly cm9yaW5nLCBidXQgd2hlbiBzZXR0aW5nIHVwIHRoZSBtZCBkZXZpY2UsIGxpbnV4IChrZXJuZWwg b3INCj4gPj4gdXNlcnNwYWNlLCBJIGRvbid0IHJlYWxseSBrbm93KSBhbHNvIGhhbmRsZXMgdGhl IG1pcnJvcmluZyBmb3IgUkFJRDENCj4gPj4gcGVyc29ubmFsaXR5LiBJcyBMaW51eCBjbGV2ZXIg ZW5vdWdoIHRvIHNlZSB0aGF0IHRoZSBtaXJyb3JpbmcgaXMgZG9uZQ0KPiA+PiBieSB0aGUgYmlv cyBpbiBteSBjYXNlID8NCj4gPj4NCj4gPj4gQ291bGQgYW55Ym9keSB0ZWFjaCBtZSB0aGUgYmln IHBpY3R1cmUgPw0KPiA+DQo+ID4gRmFrZSBSQUlEIHVzZXMgYSBwYXJ0IG9mIGV2ZXJ5IGRpc2sg dG8gcmVjb3JkIGluZm9ybWF0aW9uIGFib3V0IHRoZSBSQUlEDQo+ID4gYXJyYXlzLiBUaGlzIGlz IGNhbGxlZCBtZXRhIGRhdGEsIGFuZCB5b3VyIEJJT1MgdXNlcyBpdCBmb3Igc2V0dGluZyB1cA0K PiA+IHRoZSBkcml2ZXMuDQo+ID4NCj4gPiBVbmRlciBMaW51eCwgZmlyc3QgeW91IG5lZWQgYSBs b3cgbGV2ZWwgU0FUQSBvciBTQVMgZHJpdmVyIHRoYXQgZGV0ZWN0cw0KPiA+IHlvdXIgcGh5c2lj YWwgZHJpdmVzLCBlLmcuIHRoZSBhaGNpIGRyaXZlci4NCj4gPg0KPiA+IG1kIGNhbiB0aGVuIGRl dGVjdCB0aGUgRERGIG1ldGEgZGF0YSBvbiB5b3VyIGRpc2sganVzdCBsaWtlIHRoZSBCSU9TLA0K PiA+IGFzc2VtYmxlIHRoZSBhcnJheShzKSwgbWlycm9yIHRoZSBkYXRhLCBhbmQgZG8gb3RoZXIg UkFJRCBvcGVyYXRpb25zLg0KPiA+DQo+ID4gRGlzdHJpYnV0aW9ucyBjYW4gc2V0IHRoaXMgdXAg YXV0b21hdGljYWxseS4gQ3VycmVudGx5IG1vc3QgZGlzdHJvcw0KPiA+IGRvbid0IGRvIHRoaXMg Zm9yIERERiAodGhleSBkbyBpdCBvbmx5IGZvciBmYWtlIFJBSUQgdXNpbmcgdGhlIEludGVsDQo+ ID4gTWF0cml4IChJTVNNKSBmb3JtYXQpLiBGb3IgRERGLCBmb3IgaGlzdG9yaWNhbCByZWFzb25z LCBtb3N0DQo+ID4gZGlzdHJpYnV0aW9ucyB3aWxsIHNldHVwIGEgbWFwcGluZyB1c2luZyBkbXJh aWQgKGRldmljZSBtYXBwZXIgYmFzZWQNCj4gPiBtaXJyb3JpbmcpLiBUaGF0IHdpbGwgYWxzbyBi YXNpY2FsbHkgd29yaywgYnV0IGl0IGlzbid0IGENCj4gPiBmdWxseS1mdW5jdGlvbmFsIFJBSUQg aW1wbGVtZW50YXRpb24gc3VjaCBhcyBNRC4gVGhlIG1hZ2ljIHRvIHNldCB1cA0KPiA+IGVpdGhl ciBNRCBvciBkbXJhaWQgYXV0b21hdGljYWxseSBhcyBkaXNrcyBhcmUgZGV0ZWN0ZWQgaXMgaGlk ZGVuIGluIHRoZQ0KPiA+IGRpc3RybydzIHVkZXYgcnVsZXMsIGFuZCBwb3NzaWJseSBpbiB0aGUg ZGlzdHJvJ3MgaW5zdGFsbGVyIGxvZ2ljLg0KPiA+DQo+IA0KPiBUaGVyZSBwYXRjaGVzIHBvc3Rl ZCB0byBkZWJpYW4gYnVnIHRyYWNrZXIgdG8gZW5hYmxlIHVzaW5nIG1kYWRtIGluDQo+IHRoZSBp bnN0YWxsZXIgdG8gYXNzZW1ibGUvc2V0dXAgSU1TTS9EREYgcmFpZCBhcnJheXMsIGFuZCB0aHVz IHVzaW5nDQo+IG1kYWRtLg0KPiBJIGhhdmVuJ3QgaW50ZWdyYXRlZCB0aG9zZSwgYnV0IGFtIHBs YW5uaW5nIHRvIHdvcmsgb24gbWVyZ2luZyB0aGVtIHNvb24uDQo+IA0KPiBBdCB0aGUgbW9tZW50 IGRtcmFpZCBpcyB1c2VkIGJ5IGRlZmF1bHQgZm9yIGJvdGggSU1TTS9EREYgb24gRGViaWFuL1Vi dW50dS4NCj4gDQo+IE15IGV4cGVyaWVuY2Ugd2l0aCB0aGVzZSBmYWtlcmFpZCBhcnJheXMgaXMg dmVyeSBsaW1pdHRlZCwgYW5kIEknZA0KPiB3YW50IHRvIGVucXVpcmUgb2YgcHJvcGVyIG1pZ3Jh dGlvbiBzdHJhdGVnaWVzIGZyb20gZG1yYWlkIHRvIG1kYWRtLg0KPiBXaGlsc3QgbG9va2luZyBh dCB0aGUgdWRldiBydWxlcywgYXQgdGhlIG1vbWVudCwgaSBoYXZlIGRpc2FibGUNCj4gSU1TTS9E REYgZnJvbSBhc3NlbWJseSBpbiBtZGFkbSB1ZGV2IHJ1bGVzLCBiZWNhdXNlIGRtcmFpZCBoYXMg YSBuaWNlDQo+IHByb3BlcnR5IG9mICJhY3RpdmF0aW5nIGFueXRoaW5nIGl0IGZpbmRzIi4NCj4g SSBzdXBwb3NlIGhhdmluZyBib3RoIG1kYWRtICYgZG1yYWlkIHJhY2luZyB0byBhY3RpdmF0ZSB0 aG9zZSBkcml2ZXMNCj4gd291bGRuJ3QgYmUgbmljZS4NCj4gDQo+IEhvdyB3b3VsZCBvbmUgbWln cmF0ZSBmcm9tIGRtcmFpZCB0byBtZGFkbT8gSSB3YXMgcG9uZGVyaW5nIGFib3V0DQo+IGRyYXN0 aWMgbWVhc3VyZXM6IHBhdGNoIG91dCBJU01TIHN1cHBvcnQgb3V0IG9mIGRtcmFpZCwgbWFrZSBk bXJhaWQNCj4gcGFja2FnZSBkZXBlbmQgb24gbWRhZG0gYW5kIG1ha2UgbWRhZG0gYWN0aXZhdGUg SVNNUyBkcml2ZXMgYnkNCj4gZGVmYXVsdC4NCj4gQnV0IHRoYXQgc291bmRzIGhhcnNoLCBhcyBJ IHdvdWxkbid0IHdhbnQgdG8gY3JpcHBsZSBkbXJhaWQgcGFja2FnZQ0KPiBmb3IgdGhvc2Ugd2hv IHN0aWxsIHByZWZlciB0byB1c2UgaXQuDQo+IA0KPiBBcmUgdGhlcmUgZGlzdHJpYnV0aW9ucyB3 aGljaCBzd2l0Y2hlZCB0byBtZGFkbSBieSBkZWZhdWx0IGZvciBJU01TPyBTdXNlPyENCg0KQUZB SUsgZm9yIElNU00sIEZlZG9yYSwgU0xFUzExc3AyLCBhbmQgUkhFTCA2LnggYWxsIGFyZSB1c2lu ZyBNRFJBSUQgYW5kDQpoYXZlIGJlZW4gZm9yIHF1aXRlIHNvbWUgdGltZXMuIA0K