diff options
author | Evgeniy Polyakov <zbr@ioremap.net> | 2009-01-19 12:20:38 -0500 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-04-03 17:53:33 -0400 |
commit | e5f753a5c7afa51fc6359b169e2f6bcb5b1a2984 (patch) | |
tree | ee286bd7468d02a259a616d9042bc3a4d0caa5dd | |
parent | 30c7c1c63079e97582a592c176bebbfd38285480 (diff) |
Staging: DST: Kconfig text update.
Kconfig help text update
Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r-- | drivers/staging/dst/Kconfig | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/staging/dst/Kconfig b/drivers/staging/dst/Kconfig index 74f32e7400a7..9a02b3f4d61a 100644 --- a/drivers/staging/dst/Kconfig +++ b/drivers/staging/dst/Kconfig | |||
@@ -4,17 +4,17 @@ config DST | |||
4 | select CONNECTOR | 4 | select CONNECTOR |
5 | ---help--- | 5 | ---help--- |
6 | DST is a network block device storage, which can be used to organize | 6 | DST is a network block device storage, which can be used to organize |
7 | exported storages on the remote nodes into the local block device. | 7 | exported storage on the remote nodes into the local block device. |
8 | 8 | ||
9 | DST works on top of any network media and protocol, it is just a matter | 9 | DST works on top of any network media and protocol; it is just a matter |
10 | of configuration utility to understand the correct addresses. The most | 10 | of configuration utility to understand the correct addresses. The most |
11 | common example is TCP over IP allows to pass through firewalls and | 11 | common example is TCP over IP, which allows to pass through firewalls and |
12 | created remote backup storage in the different datacenter. DST requires | 12 | create remote backup storage in a different datacenter. DST requires |
13 | single port to be enabled on the exporting node and outgoing connections | 13 | single port to be enabled on the exporting node and outgoing connections |
14 | on the local node. | 14 | on the local node. |
15 | 15 | ||
16 | DST works with in-kernel client and server, which improves the performance | 16 | DST works with in-kernel client and server, which improves performance by |
17 | eliminating unneded data copies and allows not to depend on the version | 17 | eliminating unneded data copies and by not depending on the version |
18 | of the external IO components. It requires userspace configuration utility | 18 | of the external IO components. It requires userspace configuration utility |
19 | though. | 19 | though. |
20 | 20 | ||
@@ -23,7 +23,7 @@ config DST | |||
23 | may be lots of in-flight transactions. When remote host does not ack | 23 | may be lots of in-flight transactions. When remote host does not ack |
24 | the transaction it will be resent predefined number of times with specified | 24 | the transaction it will be resent predefined number of times with specified |
25 | timeouts between them. All those parameters are configurable. Transactions | 25 | timeouts between them. All those parameters are configurable. Transactions |
26 | are marked as failed after all resends completed unsuccessfully, having | 26 | are marked as failed after all resends complete unsuccessfully; having |
27 | long enough resend timeout and/or large number of resends allows not to | 27 | long enough resend timeout and/or large number of resends allows not to |
28 | return error to the higher (FS usually) layer in case of short network | 28 | return error to the higher (FS usually) layer in case of short network |
29 | problems or remote node outages. In case of network RAID setup this means | 29 | problems or remote node outages. In case of network RAID setup this means |
@@ -38,7 +38,7 @@ config DST | |||
38 | 38 | ||
39 | DST may fully encrypt the data channel in case of untrusted channel and implement | 39 | DST may fully encrypt the data channel in case of untrusted channel and implement |
40 | strong checksum of the transferred data. It is possible to configure algorithms | 40 | strong checksum of the transferred data. It is possible to configure algorithms |
41 | and crypto keys, they should match on both sides of the network channel. | 41 | and crypto keys; they should match on both sides of the network channel. |
42 | Crypto processing does not introduce noticeble performance overhead, since DST | 42 | Crypto processing does not introduce noticeble performance overhead, since DST |
43 | uses configurable pool of threads to perform crypto processing. | 43 | uses configurable pool of threads to perform crypto processing. |
44 | 44 | ||
@@ -63,5 +63,5 @@ config DST_DEBUG | |||
63 | bool "DST debug" | 63 | bool "DST debug" |
64 | depends on DST | 64 | depends on DST |
65 | ---help--- | 65 | ---help--- |
66 | This option will turn HEAVY debugging of the DST. | 66 | This option will enable HEAVY debugging of the DST. |
67 | Turn it on ONLY if you have to debug some really obscure problem. | 67 | Turn it on ONLY if you have to debug some really obscure problem. |