[#14] Rename __FROSTFS__ to __SYSTEM__

Signed-off-by: Denis Kirillov <d.kirillov@yadro.com>

CHANGELOG.md

@@ -1,5 +1,10 @@
 # Changelog
 
+## [Unreleased]
+
+### Changed
+- Add `__SYSTEM__` attribute prefix (#12, #14)
+
 ## [2.14.0] - 2022-09-23 - Anmado (안마도, 鞍馬島)
 
 ### Added

container/types.proto

@@ -37,16 +37,20 @@ message Container {
   //
   // There are some "well-known" attributes affecting system behaviour:
   //
-  // * [ __NEOFS__SUBNET | __FROSTFS__SUBNET ] \
+  // * [ __SYSTEM__SUBNET ] \
+  //   (`__NEOFS__SUBNET` is deprecated) \
   //   String ID of a container's storage subnet. Any container can be attached to
   //   one subnet only.
-  // * [ __NEOFS__NAME | __FROSTFS__NAME ] \
+  // * [ __SYSTEM__NAME ] \
+  //   (`__NEOFS__NAME` is deprecated) \
   //   String of a human-friendly container name registered as a domain in
   //   NNS contract.
-  // * [ __NEOFS__ZONE | __FROSTFS__ZONE ]  \
+  // * [ __SYSTEM__ZONE ]  \
-  //   String of a zone for `__NEOFS__NAME`/`__FROSTFS__NAME`. Used as a TLD of a domain name in NNS
+  //   (`__NEOFS__ZONE` is deprecated) \
+  //   String of a zone for `__SYSTEM__NAME` (`__NEOFS__NAME` is deprecated). Used as a TLD of a domain name in NNS
   //   contract. If no zone is specified, use default zone: `container`.
-  // * [ __NEOFS__DISABLE_HOMOMORPHIC_HASHING | __FROSTFS__DISABLE_HOMOMORPHIC_HASHING ] \
+  // * [ __SYSTEM__DISABLE_HOMOMORPHIC_HASHING ] \
+  //   (`__NEOFS__DISABLE_HOMOMORPHIC_HASHING` is deprecated) \
   //   Disables homomorphic hashing for the container if the value equals "true" string.
   //   Any other values are interpreted as missing attribute. Container could be
   //   accepted in a NeoFS network only if the global network hashing configuration

lock/types.proto

@@ -9,7 +9,7 @@ import "refs/types.proto";
 
 // Lock objects protects a list of objects from being deleted. The lifetime of a
 // lock object is limited similar to regular objects in
-// `__NEOFS__EXPIRATION_EPOCH`/`__FROSTFS__EXPIRATION_EPOCH` attribute. Lock object MUST have expiration epoch.
+// `__SYSTEM__EXPIRATION_EPOCH` (`__NEOFS__EXPIRATION_EPOCH` is deprecated) attribute. Lock object MUST have expiration epoch.
 // It is impossible to delete a lock object via ObjectService.Delete RPC call.
 message Lock {
   // List of objects to lock. Must not be empty or carry empty IDs.

netmap/types.proto

@@ -164,7 +164,8 @@ message NodeInfo {
   //   attributes it's a string presenting floating point number with comma or
   //   point delimiter for decimal part. In the Network Map it will be saved as
   //   64-bit unsigned integer representing number of minimal token fractions.
-  // * [ __NEOFS__SUBNET_%s | __FROSTFS__SUBNET_%s ] \
+  // * [ __SYSTEM__SUBNET_%s ] \
+  //   (`__NEOFS__SUBNET_%s` is deprecated) \
   //   `True` or `False`. Defines if the node is included in the `%s` subnetwork
   //   or not. `%s` must be an existing subnetwork's ID (non-negative integer number).
   //   A node can be included in more than one subnetwork and, therefore, can contain

object/service.proto

@@ -20,11 +20,13 @@ service ObjectService {
   // keeping the receiving order.
   //
   // Extended headers can change `Get` behaviour:
-  // * [ __NEOFS__NETMAP_EPOCH | __FROSTFS__NETMAP_EPOCH ] \
+  // * [ __SYSTEM__NETMAP_EPOCH ] \
+  //   (`__NEOFS__NETMAP_EPOCH` is deprecated) \
   //   Will use the requsted version of Network Map for object placement
   //   calculation.
-  // * [ __NEOFS__NETMAP_LOOKUP_DEPTH | __FROSTFS__NETMAP_LOOKUP_DEPTH ] \
+  // * [ __SYSTEM__NETMAP_LOOKUP_DEPTH ] \
-  //   Will try older versions (starting from `__NEOFS__NETMAP_EPOCH`/`__FROSTFS__NETMAP_EPOCH` if specified or
+  //   (`__NEOFS__NETMAP_LOOKUP_DEPTH` is deprecated) \
+  //   Will try older versions (starting from `__SYSTEM__NETMAP_EPOCH` (`__NEOFS__NETMAP_EPOCH` is deprecated) if specified or
   //   the latest one otherwise) of Network Map to find an object until the depth
   //   limit is reached.
   //
@@ -54,7 +56,8 @@ service ObjectService {
   // Chunk messages SHOULD be sent in the direct order of fragmentation.
   //
   // Extended headers can change `Put` behaviour:
-  // * [ __NEOFS__NETMAP_EPOCH | __FROSTFS__NETMAP_EPOCH \
+  // * [ __SYSTEM__NETMAP_EPOCH \
+  //   (`__NEOFS__NETMAP_EPOCH` is deprecated) \
   //   Will use the requsted version of Network Map for object placement
   //   calculation.
   //
@@ -85,8 +88,9 @@ service ObjectService {
   // guarantee. Object will be marked for removal and deleted eventually.
   //
   // Extended headers can change `Delete` behaviour:
-  // * [ __NEOFS__NETMAP_EPOCH | __FROSTFS__NETMAP_EPOCH ] \
+  // * [ __SYSTEM__NETMAP_EPOCH ] \
-  //   Will use the requsted version of Network Map for object placement
+  //   (`__NEOFS__NETMAP_EPOCH` is deprecated) \
+  //   Will use the requested version of Network Map for object placement
   //   calculation.
   //
   // Please refer to detailed `XHeader` description.
@@ -110,8 +114,9 @@ service ObjectService {
   // the very minimal information will be returned instead.
   //
   // Extended headers can change `Head` behaviour:
-  // * [ __NEOFS__NETMAP_EPOCH | __FROSTFS__NETMAP_EPOCH ] \
+  // * [ __SYSTEM__NETMAP_EPOCH ] \
-  //   Will use the requsted version of Network Map for object placement
+  //   (`__NEOFS__NETMAP_EPOCH` is deprecated) \
+  //   Will use the requested version of Network Map for object placement
   //   calculation.
   //
   // Please refer to detailed `XHeader` description.
@@ -137,8 +142,9 @@ service ObjectService {
   // Specification section for more details.
   //
   // Extended headers can change `Search` behaviour:
-  // * [ __NEOFS__NETMAP_EPOCH | __FROSTFS__NETMAP_EPOCH ] \
+  // * [ __SYSTEM__NETMAP_EPOCH ] \
-  //   Will use the requsted version of Network Map for object placement
+  //   (`__NEOFS__NETMAP_EPOCH` is deprecated) \
+  //   Will use the requested version of Network Map for object placement
   //   calculation.
   //
   // Please refer to detailed `XHeader` description.
@@ -161,10 +167,12 @@ service ObjectService {
   // order.
   //
   // Extended headers can change `GetRange` behaviour:
-  // * [ __NEOFS__NETMAP_EPOCH | __FROSTFS__NETMAP_EPOCH ] \
+  // * [ __SYSTEM__NETMAP_EPOCH ] \
-  //   Will use the requsted version of Network Map for object placement
+  //   (`__NEOFS__NETMAP_EPOCH` is deprecated) \
+  //   Will use the requested version of Network Map for object placement
   //   calculation.
-  // * [ __NEOFS__NETMAP_LOOKUP_DEPTH | __FROSTFS__NETMAP_LOOKUP_DEPTH ] \
+  // * [ __SYSTEM__NETMAP_LOOKUP_DEPTH ] \
+  //   (`__NEOFS__NETMAP_LOOKUP_DEPTH` is deprecated) \
   //   Will try older versions of Network Map to find an object until the depth
   //   limit is reached.
   //
@@ -194,10 +202,12 @@ service ObjectService {
   // the request. Note that hash is calculated for XORed data.
   //
   // Extended headers can change `GetRangeHash` behaviour:
-  // * [ __NEOFS__NETMAP_EPOCH | __FROSTFS__NETMAP_EPOCH ] \
+  // * [ __SYSTEM__NETMAP_EPOCH ] \
-  //   Will use the requsted version of Network Map for object placement
+  //   (`__NEOFS__NETMAP_EPOCH` is deprecated) \
+  //   Will use the requested version of Network Map for object placement
   //   calculation.
-  // * [ __NEOFS__NETMAP_LOOKUP_DEPTH | __FROSTFS__NETMAP_LOOKUP_DEPTH ] \
+  // * [ __SYSTEM__NETMAP_LOOKUP_DEPTH ] \
+  //   (`__NEOFS__NETMAP_LOOKUP_DEPTH` is deprecated) \
   //   Will try older versions of Network Map to find an object until the depth
   //   limit is reached.
   //

object/types.proto

@@ -114,19 +114,23 @@ message Header {
   // Objects with duplicated attribute names or attributes with empty values
   // will be considered invalid.
   //
-  // There are some "well-known" attributes starting with `__NEOFS__`/`__FROSTFS__` prefix
+  // There are some "well-known" attributes starting with `__SYSTEM__` (`__NEOFS__` is deprecated) prefix
   // that affect system behaviour:
   //
-  // * [ __NEOFS__UPLOAD_ID | __FROSTFS__UPLOAD_ID ] \
+  // * [ __SYSTEM__UPLOAD_ID ] \
+  //   (`__NEOFS__UPLOAD_ID` is deprecated) \
   //   Marks smaller parts of a split bigger object
-  // * [ __NEOFS__EXPIRATION_EPOCH | __FROSTFS__EXPIRATION_EPOCH ] \
+  // * [ __SYSTEM__EXPIRATION_EPOCH ] \
+  //   (`__NEOFS__EXPIRATION_EPOCH` is deprecated) \
   //   Tells GC to delete object after that epoch
-  // * [ __NEOFS__TICK_EPOCH | __FROSTFS__TICK_EPOCH ] \
+  // * [ __SYSTEM__TICK_EPOCH ] \
+  //   (`__NEOFS__TICK_EPOCH` is deprecated) \
   //   Decimal number that defines what epoch must produce
   //   object notification with UTF-8 object address in a
   //   body (`0` value produces notification right after
   //   object put)
-  // * [ __NEOFS__TICK_TOPIC | __FROSTFS__TICK_TOPIC ] \
+  // * [ __SYSTEM__TICK_TOPIC ] \
+  //   (`__NEOFS__TICK_TOPIC` is deprecated) \
   //   UTF-8 string topic ID that is used for object notification
   //
   // And some well-known attributes used by applications only:

proto-docs/container.md

@@ -587,16 +587,20 @@ values will be considered invalid.
 
 There are some "well-known" attributes affecting system behaviour:
 
-* [ __NEOFS__SUBNET | __FROSTFS__SUBNET ] \
+* [ __SYSTEM__SUBNET ] \
+  (`__NEOFS__SUBNET` is deprecated) \
   String ID of a container's storage subnet. Any container can be attached to
   one subnet only.
-* [ __NEOFS__NAME | __FROSTFS__NAME ] \
+* [ __SYSTEM__NAME ] \
+  (`__NEOFS__NAME` is deprecated) \
   String of a human-friendly container name registered as a domain in
   NNS contract.
-* [ __NEOFS__ZONE | __FROSTFS__ZONE ]  \
+* [ __SYSTEM__ZONE ]  \
-  String of a zone for `__NEOFS__NAME`/`__FROSTFS__NAME`. Used as a TLD of a domain name in NNS
+  (`__NEOFS__ZONE` is deprecated) \
+  String of a zone for `__SYSTEM__NAME` (`__NEOFS__NAME` is deprecated). Used as a TLD of a domain name in NNS
   contract. If no zone is specified, use default zone: `container`.
-* [ __NEOFS__DISABLE_HOMOMORPHIC_HASHING | __FROSTFS__DISABLE_HOMOMORPHIC_HASHING ] \
+* [ __SYSTEM__DISABLE_HOMOMORPHIC_HASHING ] \
+  (`__NEOFS__DISABLE_HOMOMORPHIC_HASHING` is deprecated) \
   Disables homomorphic hashing for the container if the value equals "true" string.
   Any other values are interpreted as missing attribute. Container could be
   accepted in a NeoFS network only if the global network hashing configuration

proto-docs/lock.md

@@ -27,7 +27,7 @@
 ### Message Lock
 Lock objects protects a list of objects from being deleted. The lifetime of a
 lock object is limited similar to regular objects in
-`__NEOFS__EXPIRATION_EPOCH`/`__FROSTFS__EXPIRATION_EPOCH` attribute. Lock object MUST have expiration epoch.
+`__SYSTEM__EXPIRATION_EPOCH` (`__NEOFS__EXPIRATION_EPOCH` is deprecated) attribute. Lock object MUST have expiration epoch.
 It is impossible to delete a lock object via ObjectService.Delete RPC call.
 
 

proto-docs/netmap.md

@@ -406,7 +406,8 @@ explicitly set:
   attributes it's a string presenting floating point number with comma or
   point delimiter for decimal part. In the Network Map it will be saved as
   64-bit unsigned integer representing number of minimal token fractions.
-* [ __NEOFS__SUBNET_%s | __FROSTFS__SUBNET_%s ] \
+* [ __SYSTEM__SUBNET_%s ] \
+  (`__NEOFS__SUBNET_%s` is deprecated) \
   `True` or `False`. Defines if the node is included in the `%s` subnetwork
   or not. `%s` must be an existing subnetwork's ID (non-negative integer number).
   A node can be included in more than one subnetwork and, therefore, can contain

proto-docs/object.md

@@ -93,11 +93,13 @@ be restored by concatenation of object message payload and all chunks
 keeping the receiving order.
 
 Extended headers can change `Get` behaviour:
-* [ __NEOFS__NETMAP_EPOCH | __FROSTFS__NETMAP_EPOCH ] \
+* [ __SYSTEM__NETMAP_EPOCH ] \
+  (`__NEOFS__NETMAP_EPOCH` is deprecated) \
   Will use the requsted version of Network Map for object placement
   calculation.
-* [ __NEOFS__NETMAP_LOOKUP_DEPTH | __FROSTFS__NETMAP_LOOKUP_DEPTH ] \
+* [ __SYSTEM__NETMAP_LOOKUP_DEPTH ] \
-  Will try older versions (starting from `__NEOFS__NETMAP_EPOCH`/`__FROSTFS__NETMAP_EPOCH` if specified or
+  (`__NEOFS__NETMAP_LOOKUP_DEPTH` is deprecated) \
+  Will try older versions (starting from `__SYSTEM__NETMAP_EPOCH` (`__NEOFS__NETMAP_EPOCH` is deprecated) if specified or
   the latest one otherwise) of Network Map to find an object until the depth
   limit is reached.
 
@@ -131,7 +133,8 @@ object payload. All messages, except first one, SHOULD be payload chunks.
 Chunk messages SHOULD be sent in the direct order of fragmentation.
 
 Extended headers can change `Put` behaviour:
-* [ __NEOFS__NETMAP_EPOCH | __FROSTFS__NETMAP_EPOCH \
+* [ __SYSTEM__NETMAP_EPOCH \
+  (`__NEOFS__NETMAP_EPOCH` is deprecated) \
   Will use the requsted version of Network Map for object placement
   calculation.
 
@@ -166,8 +169,9 @@ Delete the object from a container. There is no immediate removal
 guarantee. Object will be marked for removal and deleted eventually.
 
 Extended headers can change `Delete` behaviour:
-* [ __NEOFS__NETMAP_EPOCH | __FROSTFS__NETMAP_EPOCH ] \
+* [ __SYSTEM__NETMAP_EPOCH ] \
-  Will use the requsted version of Network Map for object placement
+  (`__NEOFS__NETMAP_EPOCH` is deprecated) \
+  Will use the requested version of Network Map for object placement
   calculation.
 
 Please refer to detailed `XHeader` description.
@@ -195,8 +199,9 @@ returned. If `main_only` request field is set, the short header with only
 the very minimal information will be returned instead.
 
 Extended headers can change `Head` behaviour:
-* [ __NEOFS__NETMAP_EPOCH | __FROSTFS__NETMAP_EPOCH ] \
+* [ __SYSTEM__NETMAP_EPOCH ] \
-  Will use the requsted version of Network Map for object placement
+  (`__NEOFS__NETMAP_EPOCH` is deprecated) \
+  Will use the requested version of Network Map for object placement
   calculation.
 
 Please refer to detailed `XHeader` description.
@@ -226,8 +231,9 @@ Header's filed values. Please see the corresponding NeoFS Technical
 Specification section for more details.
 
 Extended headers can change `Search` behaviour:
-* [ __NEOFS__NETMAP_EPOCH | __FROSTFS__NETMAP_EPOCH ] \
+* [ __SYSTEM__NETMAP_EPOCH ] \
-  Will use the requsted version of Network Map for object placement
+  (`__NEOFS__NETMAP_EPOCH` is deprecated) \
+  Will use the requested version of Network Map for object placement
   calculation.
 
 Please refer to detailed `XHeader` description.
@@ -254,10 +260,12 @@ restored by concatenation of all received payload chunks keeping the receiving
 order.
 
 Extended headers can change `GetRange` behaviour:
-* [ __NEOFS__NETMAP_EPOCH | __FROSTFS__NETMAP_EPOCH ] \
+* [ __SYSTEM__NETMAP_EPOCH ] \
-  Will use the requsted version of Network Map for object placement
+  (`__NEOFS__NETMAP_EPOCH` is deprecated) \
+  Will use the requested version of Network Map for object placement
   calculation.
-* [ __NEOFS__NETMAP_LOOKUP_DEPTH | __FROSTFS__NETMAP_LOOKUP_DEPTH ] \
+* [ __SYSTEM__NETMAP_LOOKUP_DEPTH ] \
+  (`__NEOFS__NETMAP_LOOKUP_DEPTH` is deprecated) \
   Will try older versions of Network Map to find an object until the depth
   limit is reached.
 
@@ -291,10 +299,12 @@ length) tuples. Hashes order in response corresponds to the ranges order in
 the request. Note that hash is calculated for XORed data.
 
 Extended headers can change `GetRangeHash` behaviour:
-* [ __NEOFS__NETMAP_EPOCH | __FROSTFS__NETMAP_EPOCH ] \
+* [ __SYSTEM__NETMAP_EPOCH ] \
-  Will use the requsted version of Network Map for object placement
+  (`__NEOFS__NETMAP_EPOCH` is deprecated) \
+  Will use the requested version of Network Map for object placement
   calculation.
-* [ __NEOFS__NETMAP_LOOKUP_DEPTH | __FROSTFS__NETMAP_LOOKUP_DEPTH ] \
+* [ __SYSTEM__NETMAP_LOOKUP_DEPTH ] \
+  (`__NEOFS__NETMAP_LOOKUP_DEPTH` is deprecated) \
   Will try older versions of Network Map to find an object until the depth
   limit is reached.
 
@@ -848,19 +858,23 @@ Key name must be an object-unique valid UTF-8 string. Value can't be empty.
 Objects with duplicated attribute names or attributes with empty values
 will be considered invalid.
 
-There are some "well-known" attributes starting with `__NEOFS__`/`__FROSTFS__` prefix
+There are some "well-known" attributes starting with `__SYSTEM__` (`__NEOFS__` is deprecated) prefix
 that affect system behaviour:
 
-* [ __NEOFS__UPLOAD_ID | __FROSTFS__UPLOAD_ID ] \
+* [ __SYSTEM__UPLOAD_ID ] \
+  (`__NEOFS__UPLOAD_ID` is deprecated) \
   Marks smaller parts of a split bigger object
-* [ __NEOFS__EXPIRATION_EPOCH | __FROSTFS__EXPIRATION_EPOCH ] \
+* [ __SYSTEM__EXPIRATION_EPOCH ] \
+  (`__NEOFS__EXPIRATION_EPOCH` is deprecated) \
   Tells GC to delete object after that epoch
-* [ __NEOFS__TICK_EPOCH | __FROSTFS__TICK_EPOCH ] \
+* [ __SYSTEM__TICK_EPOCH ] \
+  (`__NEOFS__TICK_EPOCH` is deprecated) \
   Decimal number that defines what epoch must produce
   object notification with UTF-8 object address in a
   body (`0` value produces notification right after
   object put)
-* [ __NEOFS__TICK_TOPIC | __FROSTFS__TICK_TOPIC ] \
+* [ __SYSTEM__TICK_TOPIC ] \
+  (`__NEOFS__TICK_TOPIC` is deprecated) \
   UTF-8 string topic ID that is used for object notification
 
 And some well-known attributes used by applications only:

proto-docs/session.md

@@ -285,14 +285,16 @@ Key name must be a unique valid UTF-8 string. Value can't be empty. Requests or
 Responses with duplicated header names or headers with empty values will be
 considered invalid.
 
-There are some "well-known" headers starting with `__NEOFS__` or `__FROSTFS__` prefix that
+There are some "well-known" headers starting with `__SYSTEM__` (`__NEOFS__` is deprecated) prefix that
 affect system behaviour:
 
-* [ __NEOFS__NETMAP_EPOCH | __FROSTFS__NETMAP_EPOCH ] \
+* [ __SYSTEM__NETMAP_EPOCH ] \
+  (`__NEOFS__NETMAP_EPOCH` is deprecated) \
   Netmap epoch to use for object placement calculation. The `value` is string
   encoded `uint64` in decimal presentation. If set to '0' or not set, the
   current epoch only will be used.
-* [ __NEOFS__NETMAP_LOOKUP_DEPTH | __FROSTFS__NETMAP_LOOKUP_DEPTH ] \
+* [ __SYSTEM__NETMAP_LOOKUP_DEPTH ] \
+  (`__NEOFS__NETMAP_LOOKUP_DEPTH` is deprecated) \
   If object can't be found using current epoch's netmap, this header limits
   how many past epochs the node can look up through. The `value` is string
   encoded `uint64` in decimal presentation. If set to '0' or not set, only the

proto-docs/storagegroup.md

@@ -31,7 +31,7 @@ additional information used for the proof of storage. `StorageGroup` only
 contains objects from the same container.
 
 Being an object payload, StorageGroup may have expiration Epoch set with
-`__NEOFS__EXPIRATION_EPOCH`/`__FROSTFS__EXPIRATION_EPOCH` well-known attribute. When expired, StorageGroup
+`__SYSTEM__EXPIRATION_EPOCH` (`__NEOFS__EXPIRATION_EPOCH` is deprecated) well-known attribute. When expired, StorageGroup
 will be ignored by InnerRing nodes during Data Audit cycles and will be
 deleted by Storage Nodes.
 

proto-docs/tombstone.md

@@ -31,7 +31,7 @@ purged from the NeoFS network.
 
 | Field | Type | Label | Description |
 | ----- | ---- | ----- | ----------- |
-| expiration_epoch | [uint64](#uint64) |  | Last NeoFS epoch number of the tombstone lifetime. It's set by the tombstone creator depending on the current NeoFS network settings. A tombstone object must have the same expiration epoch value in `__NEOFS__EXPIRATION_EPOCH`/`__FROSTFS__EXPIRATION_EPOCH` attribute. Otherwise, the tombstone will be rejected by a storage node. |
+| expiration_epoch | [uint64](#uint64) |  | Last NeoFS epoch number of the tombstone lifetime. It's set by the tombstone creator depending on the current NeoFS network settings. A tombstone object must have the same expiration epoch value in `__SYSTEM__EXPIRATION_EPOCH` (`__NEOFS__EXPIRATION_EPOCH` is deprecated) attribute. Otherwise, the tombstone will be rejected by a storage node. |
 | split_id | [bytes](#bytes) |  | 16 byte UUID used to identify the split object hierarchy parts. Must be unique inside a container. All objects participating in the split must have the same `split_id` value. |
 | members | [neo.fs.v2.refs.ObjectID](#neo.fs.v2.refs.ObjectID) | repeated | List of objects to be deleted. |
 

session/types.proto

@@ -137,14 +137,16 @@ message SessionToken {
 // Responses with duplicated header names or headers with empty values will be
 // considered invalid.
 //
-// There are some "well-known" headers starting with `__NEOFS__` or `__FROSTFS__` prefix that
+// There are some "well-known" headers starting with `__SYSTEM__` (`__NEOFS__` is deprecated) prefix that
 // affect system behaviour:
 //
-// * [ __NEOFS__NETMAP_EPOCH | __FROSTFS__NETMAP_EPOCH ] \
+// * [ __SYSTEM__NETMAP_EPOCH ] \
+//   (`__NEOFS__NETMAP_EPOCH` is deprecated) \
 //   Netmap epoch to use for object placement calculation. The `value` is string
 //   encoded `uint64` in decimal presentation. If set to '0' or not set, the
 //   current epoch only will be used.
-// * [ __NEOFS__NETMAP_LOOKUP_DEPTH | __FROSTFS__NETMAP_LOOKUP_DEPTH ] \
+// * [ __SYSTEM__NETMAP_LOOKUP_DEPTH ] \
+//   (`__NEOFS__NETMAP_LOOKUP_DEPTH` is deprecated) \
 //   If object can't be found using current epoch's netmap, this header limits
 //   how many past epochs the node can look up through. The `value` is string
 //   encoded `uint64` in decimal presentation. If set to '0' or not set, only the

storagegroup/types.proto

@@ -13,7 +13,7 @@ import "refs/types.proto";
 // contains objects from the same container.
 //
 // Being an object payload, StorageGroup may have expiration Epoch set with
-// `__NEOFS__EXPIRATION_EPOCH`/`__FROSTFS__EXPIRATION_EPOCH` well-known attribute. When expired, StorageGroup
+// `__SYSTEM__EXPIRATION_EPOCH` (`__NEOFS__EXPIRATION_EPOCH` is deprecated) well-known attribute. When expired, StorageGroup
 // will be ignored by InnerRing nodes during Data Audit cycles and will be
 // deleted by Storage Nodes.
 //

tombstone/types.proto

@@ -12,7 +12,7 @@ import "refs/types.proto";
 message Tombstone {
   // Last NeoFS epoch number of the tombstone lifetime. It's set by the tombstone
   // creator depending on the current NeoFS network settings. A tombstone object
-  // must have the same expiration epoch value in `__NEOFS__EXPIRATION_EPOCH`/`__FROSTFS__EXPIRATION_EPOCH`
+  // must have the same expiration epoch value in `__SYSTEM__EXPIRATION_EPOCH` (`__NEOFS__EXPIRATION_EPOCH` is deprecated)
   // attribute. Otherwise, the tombstone will be rejected by a storage node.
   uint64 expiration_epoch = 1 [json_name = "expirationEpoch"];