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authorEvgeniy Polyakov <zbr@ioremap.net>2009-01-19 12:20:38 -0500
committerGreg Kroah-Hartman <gregkh@suse.de>2009-04-03 17:53:33 -0400
commite5f753a5c7afa51fc6359b169e2f6bcb5b1a2984 (patch)
treeee286bd7468d02a259a616d9042bc3a4d0caa5dd
parent30c7c1c63079e97582a592c176bebbfd38285480 (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/Kconfig18
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.